Chapter 9 — 310M - RESIDENTIAL ZONE LOT AND STRUCTURE REGULATIONS

San Joaquin County Zoning Code · 2026-06 edition · ingested 2026-07-06 · San Joaquin County

Tables:

9-310.3M - LOT SIZE.

Minimum lot size by residential zone shall be as set forth in Table 9-310.3MCP, as modified by Table 9- 310.5MCP, for the Specific Plan III area and as set forth in Table 9-310.3M unless otherwise specified for other areas of Mountain House.

(a)

Major or Minor Subdivisions. For Major and Minor Subdivision applications, the size of individual lots may be reduced to ninety percent (90%) of the minimum lot size required by Table 9-310.3MCP for the Specific Plan III area and by Table 9-310.3M for other areas, provided Master Plan density requirements are met.

(b)

Affordable Housing. Lot size exceptions for projects providing affordable housing shall be as specified in the Development Title.

(Ord. 3813 (part), 1994; Ord. 4066, § 5, 2000; Ord. 4276, § 6 (part), 2005)

9-310.4M - LOT WIDTH.

Unless otherwise specified, lots within residential zones shall have a width as specified in Table 9- 310.3MCP for the Specific Plan III area and in Table 9-310.3M for other areas.

(a)

Major or Minor Subdivision. Minimum lot width for individual lots may be reduced five (5) feet from the required minimum, provided the average lot width in the proposed subdivision is at least equal to the minimum lot width required.

(b)

Affordable Housing. Lot width exceptions for projects providing affordable housing shall be as specified in the Development Title.

(Ord. 3813 (part), 1994; Ord. 4276, § 6 (part), 2005)

9-310.5M - SETBACKS.

Buildings and structures within the Specific Plan III area of Mountain House shall meet the setback requirements specified in Table 9-310.3MCP, except as noted in Table 9-310.5MCP. For other areas of Mountain House, unless otherwise specified, buildings and structures shall meet the setback requirements specified in Table 9-310.3M. For lots located within the R-M zone and within a tract for which a Model Home Master Plan has been approved, the setback and structure standards specified in Table 9-310.3MCP for lots within the Specific Plan III area and in Table 9-310.3M for other areas for lots with an area of less than thirty-six hundred (3,600) square feet shall be applicable to all lots in the tract if at least one (1) of the residential lots has an area of less than thirty-six hundred (3,600) square feet. The setback requirements and exceptions specified in Table 9-310.3MCP and Table 9-310.5MCP for the Specific Plan III area and in Table 9-310.3M and this Section for other areas of Mountain House shall replace the chapter concerning

yards and the general provisions concerning yard dimensions in the Development Title (Chapter 9-1010 and Section 9-310.5, respectively). For court lots, autocourt lots and greencourt lots, see Table 9-310.5M for the location of front, side and rear property lines.

(a)

Front, Side, and Rear Setback Exceptions.

(1)

Structures on lots zoned R-MH or R-H, or designated R/MH or R/H on the Master Plan, shall increase the minimum setback by five (5) feet for each story over the first story when adjacent to arterial roads or lots designated R/VL, R/L or R/M on the Master Plan.

(2)

For side yards, the following setbacks shall be applicable, provided coverage requirements and FAR requirements as specified in Table 9-310.3M are met:

(A)

The side setback in the R-L, R-M and R-MH zones may be reduced to zero (0) feet along the common wall in a zero lot-line residential project or where the distance between the building on the subject lot and the building on the adjacent lot is at least the minimum building separation as specified in Table 9-310.3M.

(B)

For lots less than fifty-one (51) feet in width, that are located within a tract for which a Model Home Master Plan has been approved, the side setback shall equal ten percent (10%) of the smallest lot width within said Tract, but in no case shall the side setback be less than three (3) feet.

(3)

For single story accessory buildings located in the rear third of the parcel, the rear setback may be reduced to zero (0) feet where the distance between the accessory structure on the subject lot and the structure on the adjacent lot is at least the minimum building separation as specified in Table 9-310.3M.

(4)

For corner lots, the following setbacks shall be applicable, provided coverage requirements and FAR requirements as specified in Table 9-310.3M are met:

(A)

For corner lots zoned R-L the minimum streetside side setback shall be ten (10) feet.

(B)

For corner lots zoned R-M less than fifty-one (51) feet in width, that are located within a tract for which a Model Home Master Plan has been approved, the minimum streetside side setback shall be five (5) feet, plus an additional ten percent (10%) of the smallest lot width within said Tract, but in no case shall be less than nine (9) feet.

(C)

For corner lots zoned R-M, greater than or equal to fifty-one (51) feet in width, the minimum streetside setback shall be ten (10) feet.

(D)

For reverse corner lots, the side setback requirement shall be applied to the rear setback.

(E)

For corner lots within Tract 3202, the rear setback shall be ten (10) feet.

(5)

For buildings with common automobile or pedestrian access, except where a building is adjacent to a public street, front and rear setbacks may be reduced to zero (0) feet, provided that minimum building separations per Table 9-310.3M are maintained.

(6)

For single family homes with common automobile or pedestrian access in the R-MH zone, the rear setback for lots backing onto a public street may be reduced to five (5) feet, provided that minimum building separations as specified in Table 9-310.3M are maintained.

(7)

For lots located within the R-M zone and within a tract for which a Model Home Master Plan has been approved the minimum building separation for all lots shall be twenty percent (20%) of smallest lot width within the tract, but in no case shall be less than six (6) feet.

(8)

For lots zoned R-L less than one hundred (100) feet in depth, the minimum front and rear setback shall be fifteen (15) feet.

(b)

Setback Exceptions for Specified Streets.

(1)

Marina Boulevard. Dwellings shall maintain a minimum setback of two hundred and ten (210) feet from the Community Boundary.

(2)

I-205. Dwellings shall maintain a minimum setback from I-205 as specified in the Master Plan.

(c)

Setback Exceptions for Garages.

(1)

The minimum front setback for garages with doors facing the local, collector or arterial streets shall be five (5) feet behind the building façade of the main structure.

(2)

The minimum setback for side entry garages, including a side entry garage with a second unit dwelling located over said garage, shall be twenty-five (25) feet in the R-VL zone and ten (10) feet for all other residential zones.

(3)

For garages served by common driveways, auto courts or alleys, garage setbacks may be reduced to zero (0) feet provided that a minimum building separation of twenty (20) feet is maintained between the subject garage and the building across the common driveway, and consistency with Subsection (c)(1) is maintained.

(4)

For single story garages located in the rear third of the parcel that includes either one (1) space of a total three (3) car garage or both spaces of a two (2) car garage, the rear setback may be reduced to zero (0) feet where the distance between said garage on the subject lot and the structure on the adjacent lot is at least the minimum building separation as specified in Table 9-310.3M.

(5)

On corner lots less than fifty (50) feet in width, garages that are accessed from side streets and that have automatic garage door openers with remote controls may project toward the street up to five (5) feet into the streetside side setback, but must maintain a minimum four (4) feet from the streetside side property line. Second level habitable space above said garage may project two (2) feet into the street side yard setback.

(d)

Setback Exceptions for Off-Street Parking Areas.

(1)

The minimum setback for off-street parking areas for nonresidential use types in the R-VL, R-L and R-M zones shall be ten (10) feet from any adjacent street, and five (5) feet from any side or rear property line not abutting a street.

(2)

The minimum setback for off-street parking areas in the R-MH and R-H zones shall be fifteen (15) feet from any adjacent street; ten (10) feet from any adjacent lot zoned R-VL, R-L or R-M; and five (5) feet from any side or rear property line not abutting a street or lot zoned R-VL, R-L or R-M.

(e)

Setback Exceptions for Other Specified Structures.

(1)

Fire Escapes. Fire escapes shall not extend or project more than four (4) feet beyond the setback line.

(2)

Stairways and Balconies. Open, unenclosed stairways, or balconies not covered by a roof or canopy, shall not extend or project more than four (4) feet beyond the side or rear setback line, and shall not extend or project more than thirty (30) inches beyond the front setback line.

(3)

Porches. Porches, platforms or landing places which do not extend above the level of the first floor of the building may extend six (6) feet in the R-M zone or eight (8) feet in the R-L and R-VL zones into any setback adjacent to a public street, but must maintain a minimum four (4) feet setback from the property line. Any open work railing, no more than thirty (30) inches in height, may be installed or constructed on any such porch, platform or landing place.

(4)

Patio Covers. Patio covers, as defined by Chapter 49 of the Uniform Building Code, may be located within three (3) feet of the rear or side property line.

(5)

Eaves, Roof Overhangs and Similar Features. Eaves, roof overhangs and other similar architectural features may extend or project up to:

(A)

Thirty (30) inches beyond the setback line, provided said architectural feature is no closer than thirty (30) inches to the property line where the setback requirement is ten (10) feet or less;

(B)

Four (4) feet beyond the setback line, where the setback requirement is more than ten (10) feet.

(6)

Fireplaces, Air Conditioning Equipment, Water Softener Units. Fireplaces, air conditioning units and water softening units may extend or project up to thirty (30) inches beyond the setback line, provided said structure is no closer than thirty (30) inches to the property line.

(7)

Pools. Pools shall not be located closer than three (3) feet from any side or rear property line. On corner lots, pools shall be located no closer to the street than the setback specified for that residential zone.

(8)

Non-Habitable Architectural Features. Non-habitable architectural features may project up to thirty (30) inches into any setback or setback exception, but must maintain a minimum of four (4) feet from the property line when fronting on a public street.

(9)

Fences.

(A)

For corner lots that are not reverse corner lots in the Low Density (R-L) and Medium Density (R-M) residential zones: a fence up to six (6) feet in height may be located five (5) feet from the streetside side property line, provided the fence tie-in to the house along said streetside side yard occurs at a point that is approximately one-half the length of the house, or less, as measured from the rear of the house.

(B)

For reverse corner lots in the Low Density (R-L) and Medium Density (R-M) Residential Zones: a fence up to seven (7) feet in height may be permitted in the streetside side yard, provided it is located a minimum of ten (10) feet from the streetside side property line.

(C)

For side yards that are adjacent to the knuckle of a cul-de-sac in the Low Density (R-L) and Medium Density (R-M) residential zones: a fence up to six (6) feet in height may be permitted, provided it is located a minimum of five (5) feet from said side yard property line.

(D)

For front yards in all residential zones except the Very Low Density (R-VL) zone: a fence up to seven (7) feet in height may be permitted, provided it is located a minimum of ten (10) feet from the property line.

(E)

For front yards and streetside side yards in the Medium-High Density (R-MH) and High Density (R-H) residential zones: a fence up to seven (7) feet in height may be permitted, provided it is located a minimum of ten (10) feet from the property line.

(F)

For any required yard in the Very Low Density (R-VL) residential zone: an open fence up to seven (7) feet in height may be permitted.

(G)

For corner lots in which the rear yard is adjacent to a street or an alley, a fence up to six (6) feet in height may be located five (5) feet from the streetside side property line.

(f)

Setback Exceptions for Specified Land Uses or Features.

(1)

County Line. Dwellings shall maintain a minimum setback from the Alameda County Line as specified in the Master Plan.

(2)

Power Line Easements.

(A)

Dwelling units shall maintain a minimum setback of twenty-five (25) feet from the Rio Oso-Tesla powerline easement.

(B)

School sites shall maintain a minimum setback of one hundred (100) feet from a fifty (50) to one hundred thirty-three (133) kV line existing or proposed powerline easement; one hundred fifty (150) feet from a two hundred twenty (220) kV line existing or proposed powerline easement; and three hundred fifty (350) feet from a five hundred (500) to five hundred fifty (550) kV line existing or proposed powerline easement.

(C)

Other nonresidential structures shall maintain a minimum of ten (10) feet from the Rio Oso-Tesla powerline easement.

(3)

Mountain House Creek Corridor. Buildings shall maintain a minimum setback of fifty (50) feet from the Mountain House Creek Corridor.

(4)

Wetlands. Buildings and structures shall maintain a minimum setback from wetlands in accordance with the setback requirements for wetlands specified in the Wetlands Management Plan.

(5)

Delta-Mendota Canal. Dwellings, excluding garages, shall maintain a minimum setback from the DeltaMendota Canal as specified in the Master Plan.

(g)

Affordable Housing. Setback exceptions for projects providing affordable housing shall be those specified in the Development Title.

(h)

Setback Exceptions for Property Surrounding a Neighborhood Center. The front yard setback for structures on lots zoned R-L may be reduced to fifteen (15) feet, provided said lots surround, or are across from, a Neighborhood Center.

(i)

Setback Exceptions for Residential Lots on Central Parkway. For residential lots in the R-L zone that front on Central Parkway, the front yard setback may be reduced to fifteen (15) feet and the rear yard setback may be reduced to fifteen (15) feet.

(Ord. 3813 (part), 1994; Ord. 3974, § 4, 1998; Ord. 4242, § 2, 2005; Ord. 4276, § 6 (part), 2005; Ord. No. 4419, § 1, 12-13-2011; Ord. No. 4439, §§ 1, 2, 7-23-2013; Ord. No. 4529, § 1, 4-9-2019)

9-310.6M - HEIGHT.

Buildings and structures in residential zones within Specific Plan III shall not exceed the maximum building heights specified in Table 9-310.3MCP, except as provided below. Buildings and structures in other Mountain House residential zones shall not exceed the maximum building heights specified in Table 9- 310.3M, except as provided below. Said exceptions shall be limited by any ordinance relating to airports, and shall serve to replace Chapter 9-1005 on height limits for special structures and Section 9-310.6 concerning building height of the San Joaquin Development Title.

(a)

Parking facilities located below the main structure in the R-H zone. Within the R-H zone, one-half (½) additional story may be permitted for parking facilities located below the main structure;

(b)

Penthouse or roof structures for the housing of elevators, stairways, tanks, ventilating fans or similar equipment required to operate and maintain the building;

(c)

Skylights and chimneys;

(d)

Flagpoles;

(e)

Church towers/steeples;

(f)

Watertanks; and

(g)

Homes may have a 3rd level if it is contained within the 2nd level roof and 2nd level roof eave line. Dormers are permitted through the roof envelope for egress and light.

(Ord. 3813, (part), 1994; Ord. 4333, § 4, 2007; Ord. No. 4419, § 2, 12-13-2011)

9-310.7M - BUILDING COVERAGE.

Buildings and structures in residential zones within Specific Plan III shall not exceed the maximum building coverage regulations specified in Table 9-310.3MCP, except in the following instances, as applicable. Buildings and structures in other Mountain House residential zones shall not exceed the maximum building coverage regulations specified in Table 9-310.3M, except in the following instances:

(a)

Single-story porches which wrap from the front to the side of the house in the R-L and R-M zoning districts: an area up to twenty percent (20%) of the total building coverage (excluding garages) shall not be included in the calculation of maximum building coverage.

(b)

Total of all porch coverage exceptions shall not exceed twenty percent (20%) of the total building coverage.

(c)

Single story front porches in the R-L and R-M zoning districts: an area up to ten percent (10%) of the total building coverage (excluding garages) shall not be included in the calculation of maximum building coverage.

(d)

Single story rear and side porches in the R-L and R-M zoning districts: for each, an area up to five percent (5%) of the total building coverage (excluding garages) shall not be included in the calculation of maximum building coverage.

(e)

Homes that front on Central Parkway in the R-L zone are allowed a maximum building coverage of fifty percent (50%).

(f)

Residential developments providing housing affordable to persons of low and very low incomes may be permitted to increase building coverage over that specified in Table 9-310.3M as one of several possible bonus incentives permitted by the Development Title.

(Ord. 3813 (part), 1994; Ord. 4173, § 1, 2002; Ord. 4242, § 5, 2005; Ord. 4333, § 5, 2007)

9-310.8M - MINIMUM DIMENSIONS OF CORNER LOTS.

For corner lots in the Specific Plan III planning area, corner lot dimensions and setbacks shall be as per Table 9-310.3MCP. For corner lots in other areas of Mountain House, the following provisions shall be applicable:

(a)

For corner lots in the R-L zone, the minimum lot width shall be fifty-five (55) feet.

(b)

For corner lots in the R-M zone, the minimum lot width shall be forty-five (45) feet.

(c)

For corner lots in the R-MH zone, the minimum lot width shall be forty-five (45) feet.

(d)

For corner lots in the R-H zone, the minimum lot widths shall be sixty-five (65) feet.

(Ord. 3813 (part), 1994; Ord. 4242, § 6, 2005; Ord. 4333, § 6, 2007)

9-310.9M - Floor Area Ratio.

All Tracts which contain lots which utilize the FAR standards must apply for a Model Home Master Plan with a minimum of three (3) floor plans. One (1) such plan may not exceed sixty percent (60%) FAR, or one thousand four hundred (1,400) square feet Livable Area, whichever is more. On Model Home Master Plans which have three (3) floor plans, any one (1) plan shall not be used on less than thirty percent (30%) or more than forty percent (40%) of the total lots. On Model Home Master Plans which have four (4) floor plans, any one (1) plan shall not be used on less than twenty percent (20%) or more than thirty-five percent (35%) of the total lots. On Model Home Master Plans which have five (5) or more floor plans, any one (1) plan shall not be used on less than fifteen percent (15%) or more than thirty percent (30%) of total lots. Average FAR is calculated by dividing total Livable Area plus attached garage interior floor area by the total lot area for all lots within a Model Home Master Plan.

(Ord. No. 4419, § 3, 12-13-2011)

TABLE 9-310.3M

LOT AND STRUCTURE STANDARDS[1]

Zoning District Minimum
Lot Size
(square
feet)
Minimum
Lot Width
(feet)
Maximum
Building
Height
(stories)
Maximum Building Coverage
(Percent)/ Maximum Average
FAR (Percent)
R-VL 15,000 75 2 35 Coverage
R-L 5,000 50 2 40 Coverage; 50 Coverage (for
one story homes)
R-M (≥3,600 sf) 3,000 40 2 50 Coverage
R-M (<3,600 sf) 2,000 35 2 75 Average FAR
R-MH - - 3 65 Coverage
R-H - - 3 65 Coverage

Minimum Setback Requirements[2, 3]

Zoning District Front Setback
(feet)
Side Setback (feet) Minimum Building
Separation (feet)
Rear Setback (feet)
R-VL 25 15 30 25
R-L 20; 15 (for one
story building)
5 10 20; 15 (for one
story homes)
R-M (≥3,600 sf) 15 5 10 15
R-M (<3,600 sf) 10 5 10 10
R-MH 15; 10 (for arterial) 5 10 10
R-H 15; 10 (for arterial) 10 20 10

1 See Sections 9-310.3M through 9-310.8M for exceptions and modifications.

2 Unless otherwise specified, setbacks shall be measured from the planned ultimate right-of-way width of the roadway, as shown on the Master Plan or on any applicable Specific Plan.

3 Table 9-310.3 concerning lot depth to width ratio shall not apply to lots addressed by Table 9-310.3M.

(Ord. 3813 (part), 1994; Ord. 3953, § 2, 1997; Ord. 4242, § 3, 2005; Ord. No. 4419, § 4, 12-13-2011)

TABLE 9-310.3MCP

LOT AND STRUCTURE STANDARDS FOR SPECIFIC PLAN III AREA

R-VL R-L R-M R-M small
lot1
R-MH R-H
Lot Size (SF)2 15,000 5,000 3,600 2,000 - -
Lot Width (FT)2 75 45 35 30 25 -
Corner Lot Width (FT)2 75 50 40 35 30 -
Lot Depth: Width Ratio - - - - - -
Setbacks2
Front (FT) 25 203 12 10 154 154
Rear (FT)9 25 20 15 10 10 10
Side (FT) 15 5 510 410 5 5
Corner Side (FT)12 side plus
5
side plus
5
side plus
5
side plus
5
side plus
5
side plus
5
Building Separation (FT)2 30 10 1011 811 10 20
Max. Building Coverage2 35% 40%5 50% N/A6 65% 65%
Max. Building Height (Stories)
2
2 2 2 27 3 3

Key to Land Use Regulations

1 Small lot — lots within subdivision tracts that have a standard lot size of less than 3,600 square feet.

2 Unless otherwise specified, standards are minimums and setbacks shall be measured from the planned ultimate right-of-way width of the roadway as shown on the Master Plan or on any applicable Specific Plan. Setbacks and other Table 9-310.3MCP criteria shall apply to all new residential lots within the Specific Plan Ill planning area, except where specific lot type/product design criteria have been approved and adopted as part of the College Park Specific Plan Area Design Manual or as part of a Special Purpose Plan.

3 A 15-foot front setback is allowed for single-story homes.

4 A minimum 10-foot front setback is allowed on arterial streets, but the minimum front setback shall be increased by five feet for each story over the first story for structures zoned R-MH and R-H adjacent to arterial roads or adjacent to lots designated R/VL, R/L or R/M in the Master Plan.

5 A 50% maximum building coverage is allowed for single-story homes.

6 Building coverage is not limited, buildings must meet all setbacks. At least one (1) plan of the model home master plan may not exceed the square feet of Livable Area set forth in the table below. Where "Standard Lot Size" may not be applicable, average lot size may be substituted for the purposes of calculating the Maximum Livable Area. The mix of plans on a Model Home Master Plan shall conform to plotting criteria set forth in the table below, but in no case shall the plan(s) required to have a Maximum Livable Area as set forth in the table above be plotted on less than 15% of lots within the Model Home Master Plan.

Master Plan.
Standard Lot Size Maximum Livable Area (for one plan)
<3,000 sq. ft. 1,400 sq. ft.
3,000 - <3,200 sq. ft. 1,500 sq. ft.
3,200 - <3,400 sq. ft. 1,600 sq. ft.
3,400 - <3,600 sq. ft. 1,700 sq. ft.
Number of plans in Model Home
Master Plan
Portion of Model Home Master
Plan occupied by each plan,
Minimum
--- ---
3 30%
4 20%
5 15%
6 13%
7 11%
8 9%
9 7%
10 5%

7 A third level is allowed if contained within 2nd level roof and 2nd level eave line. Dormers are permitted through the roof envelope for light and egress.

8 A residential subdivision or development may be approved at a density which exceeds or falls below the density range specified by the Master Plan, provided the subdivision is within the General Plan density range; and that the Master Plan density range for each land use district will be maintained for the neighborhood, or the developer's aggregate subdivisions for a land use district within Specific Plan III.

9 Table 9-310.3 concerning lot depth to width ratio shall not apply to lots addressed by Table 9-3l0.3MCP.

10 For projects permitted through a Model Home Master Plan, side setback equals ten percent (10%) of lot width for those lots with a lot width less than fifty (50) feet wide, but in no case shall be less than three (3) feet.

11 For projects permitted through a Model Home Master Plan, building separation equals twenty percent (20%) of lot width for those lots with a lot width less than fifty (50) feet wide, but in no case shall be less than six (6) feet.

12 Lots siding on pedestrian paseos, Homeowners' Association (HOA) landscape parcels or street rightsof-way that include a minimum of five (5) feet of landscaping adjacent to the parcel in question shall not be considered corner lots.

(Ord. 4276, § 7 (part), 2005; Ord. 4333, § 2, 2007)

TABLE 9-310.5M

LOCATION OF FRONT, REAR AND SIDES OF COURT-TYPE LOTS

(Ord. 4242, § 4, 2005; Ord. 4276, § 8, 2005)

TABLE 9-310.5MCP

SETBACK EXCEPTIONS FOR SPECIFIC PLAN III AREA

Lot Size and Width Exceptions

For Major and Minor subdivisions the size of individual lots may be reduced to ninety percent (90%) of the minimum lot size provided Master Plan density requirements are met; and minimum lot width for individual lots may be reduced five (5) feet from the required minimum, provided the average lot width in the proposed subdivision is at least equal to the required minimum lot width.

Side and Rear Setbacks Exceptions

The side setback in the R-L, R-M and R-MH zones may be reduced to zero (0) feet along the common wall in a zero lot-line residential project or where the distance between the building on the subject lot and the building on the adjacent lot is at least ten (10) feet in the R-L zone and eight (8) feet in the R-M and R-MH zones.

For reverse corner lots, the rear setback shall be the same as the side setback.

For single story garages and accessory buildings located in the rear third of the parcel, the rear setback may be reduced to zero (0) feet where the distance between the garage or accessory structure on the subject lot and the structure on the adjacent lot is at least eight (8) feet.

Rear setbacks on alleys may be reduced to four (4) feet.

Specific Situation Setback Exceptions

Specifc Situation Setback Exceptions
I-205 Dwellings shall maintain setback from I-205 as specifed in
the Master Plan.
County Line Dwellings shall maintain a minimum setback from the
Alameda County Line as specifed in the Master Plan.
Power Line Easements Residential dwelling units shall maintain a minimum setback
of twenty-fve (25) feet from the Rio Oso-Tesla powerline
easement, and non-residential structures shall maintain a
ten (10) foot setback from the powerline easement.
Delta-Mendota Canal Dwellings, excluding garages, shall maintain a minimum
setback from the Delta-Mendota Canal as specifed in the
Master Plan.
Wetlands Buildings and structures shall maintain a minimum setback
from wetlands in accordance with the setback requirements
for wetlands specifed in the Wetlands Management Plan.
High Pressure Gas and Oil Line Easement Habitable residential structures shall maintain a minimum
setback of ffty-eight (58) feet from the edge of the high
pressure gas and oil pipeline easement.
Areas Surrounding Neighborhood Centers The front yard setback on lots zoned R-L may be reduced to
ffteen (15) feet, for lots that surround, or are across from, a

Neighborhood Center.

Garage Setback Exceptions

The minimum setback for garages with doors facing the street shall be five (5) feet behind the building facade of the main structure. The minimum setback for side entry garages shall be twenty-five (25) feet in the R-VL zone and ten (10) feet for all other residential zones.

Off-Street Parking Area Setback Exceptions

The minimum setback for off-street parking areas for nonresidential use types in the R-VL, R-L and R-M zones shall be ten (10) feet from any adjacent street, and five (5) feet from any side or rear property line not abutting a street. The minimum setback for off-street parking areas in the R-MH and R-H zones shall be fifteen (15) feet from any adjacent street; ten (10) feet from any adjacent lot zoned R-VL, R-L or R-M; and five (5) feet from any side or rear property line not abutting a street or lot zoned R-VL, R-L or R-M.

Structural Feature & Equipment Setback Exceptions

Fire Escapes, Stairways and
Balconies
Fire escapes shall not extend or project more than four (4) feet
beyond the setback line. Open, unenclosed stairways, or
balconies, shall not extend or project more than four (4) feet
beyond the side or rear setback line, and shall not extend or
project more than thirty (30) inches beyond the front setback line.
Porches Porches, platforms or landing places which do not extend above
the level of the frst foor of the building may extend up to six (6)
feet in the R-M zone or eight (8) feet in the R-L and R-VL zones
into any setback adjacent to a public street but must maintain a
minimum four (4) foot setback from the property line. Any open
work railing no more than thirty-six (36) inches in height, may be
installed or constructed on any such porch, platform or landing
place.
Patio Covers Patio covers, as defned by the California Building Code, may be
located within three (3) feet of the rear or side property line.
Eaves, Roof Overhangs, Fireplaces,
Architectural Features, Air
Conditioning and Water Softener
Equipment
Eaves, roof overhangs, non-habitable architectural features,
freplaces, air conditioning units and water softening units may
extend or project up to thirty (30) inches beyond the setback line,
but no closer than thirty (30) inches to the property line.
Pools Pools shall not be located closer than fve (5) feet from any side
or rear property line. On corner lots, pools shall be located no
closer to the street than the setback specifed for that residential
zone.

Height Limit Exceptions

Parking facilities located below the main structure in the R-H zone. Within the R-H zone, one-half (½) additional story may be permitted for parking facilities located below the main structure; penthouse or roof structures for the housing of elevators, stairways, tanks, ventilating fans or similar equipment required to operate and maintain the building; and skylights and chimneys; flagpoles; church towers/steeples; and watertanks may exceed maximum building heights.

(Ord. 4276, § 7 (part), 2005; Ord. 4333, § 3, 2007)

CHAPTER 9-405M - COMMERCIAL ZONE USE REGULATIONS

Tables:

9-405.2M - PERMITTED USE TYPES.

Permitted, not permitted and conditionally permitted use types shall be as provided in Table 9-405.2M.

(Ord. 3813 (part), 1994)

9-405.4M - TEMPORARY USES AND STRUCTURES.

Permitted, not permitted and conditionally permitted temporary uses and structures shall be as provided in Table 9-405.4M. Temporary uses or structures not specifically listed in Table 9-405.4M may be allowed, subject to approval of an Improvement Plan.

(Ord. 3813 (part), 1994)

9-405.5M - SPECIAL USE REGULATIONS.

In addition to the provisions specified in the development title, the following provisions shall be applicable:

(a)

Medical Services Use Type.

(1)

Medical offices shall be designed and configured to appear as office type uses in those commercial zones where they are allowed.

(2)

Urgent care centers, and other facilities included under the medical services use type that provides emergency medical care, shall be situated on and accessed from arterial roadways. Said facilities shall be separated from residential and other sensitive land uses by means of an arterial roadway, landscape easement or other effective buffer.

(b)

Public Services: Essential, Use Type.

(1)

Hospitals shall not be allowed in the C-FS zone.

(2)

Hospitals shall be situated on and accessed from arterial roadways. Said facilities shall be separated from residential and other sensitive land uses by means of an arterial roadway, landscape easement or other effective buffer.

(c)

Commercial Buildings in Neighborhood Commercial (C-N) Zones. If the Director determines that the uses and architectural, siting, and other issues associated with a commercial building of a proposed application have been addressed by an existing Special Purpose Plan or Specific Plan, an Improvement Plan may be allowed for said commercial building in lieu of the permit type specified in Table 9-405.2M.

(1)

New commercial buildings not included in an existing Special Purpose Plan or Specific Plan shall be subject to the permit type specified in Table 9-405.2M.

(2)

A building expansion of an existing commercial building which has been included in an existing Special Purpose Plan or Specific Plan may be allowed subject to an Improvement Plan, provided the building expansion involves less than a twenty-five percent (25%) increase in floor area covered by the existing commercial building. If said expansion is twenty-five percent (25%) or more of the floor area covered by the existing commercial building, the expansion shall be subject to Site Approval.

(Ord. 3813 (part), 1994; Ord. 3974, § 5, 1998)

9-405.7M - DESIGN GUIDELINES.

Design Guidelines shall be submitted for consistency review prior to approval of the final map or parcel map or other Development Permit.

(Ord. 4066, § 7, 2000)

TABLE - 9-405.2M USES IN COMMERCIAL ZONES

Legend: P Permitted Use PI Permitted Use With Improvement Plan S Use Permitted Subject to Site Approval U Use Permitted Subject to Use Permit

  • Use Not Permitted
Use Types Commercial
Zone C-N
Commercial
Zone C-C
Commercial
Zone C-O
Commercial
Zone C-G
Commercial
Zone C-FS
Commercial
Zone C-R
Residential Use
Types
Family Residential
Single-Family - - - - - -
Two-Family - - - - - -
Small Multifamily - - - - -
Large Multifamily - - - - - -
Farm Employee
Housing
Small - - - - - -
Large - - - - - -
Group Care
Small P P P P P -
Large - PI PI PI - -
Adult Day Care U U - U - -
Farm Related - - - - - -
Group Residential - - - - - -
Mobile Home Park - - - - - -
Shelters -
Small - - P P - -
Medium - - P P - -
Large - - PI PI - -
Nonresidential Use
Types
Administrative
Ofces
S PI PI PI - -
Administrative
Support Services
S PI PI PI - -
Adult Entertainment - - S (-1) S - -
Aerial Services
Farm - - - - - -
Heliport - - S S - -
--- --- --- --- --- --- ---
Agricultural
Organizations
S PI PI PI - -
Agricultural
Processing
Preparation Services - - - - - -
Food Manufacturing - - - - - -
Agricultural Sales
Feed and Grain - - - U - -
Agricultural
Chemicals
- - - - - -
Agricultural
Warehousing
- - - - - -
Agricultural Wastes - - - - - -
Animal Feeding and
Sales
- - - - - -
Animal Raising
Exotic Animals - - - - - -
General - - - - - -
Hogs - - - - - -
Small Animals - - - - - -
Family Food
Production
- - - - - -
Educational Animal
Project
- - - - - -
Zoo - - - - - -
Petting Zoo - - - - - U
Animal Specialty
Services
Farm - - - - - -
Pet S S - S - -
Kennel - - - U - -
Kennel, Small
Breeding
- - - U - -
Auction Sales
--- --- --- --- --- --- ---
Indoor - S S S - -
Outdoor - - - S - -
Automotive Sales &
Services
Automotive Rentals - S - S P -
Automotive Repairs,
Light
- S - S S -
Automotive Repairs,
Heavy
- - - - - -
Automotive Sales - - - S U -
Cleaning - S - S S -
Inoperable Vehicle
Storage
- - - - - -
Operable Vehicle
Storage
- - - S - -
Parking S S S S S -
Building
Maintenance
Services
- PI - PI - -
Child Care Services
Family Day Care
Homes
P P P P P -
Child Care Centers S S S S S U
Communication
Services
Type I PI PI PI PI PI -
Type II - - - - - -
Type III - - - - - -
Type IV - S S PI - -
Community
Assembly
S S S S - -
Construction Sales - U - PI - -
Construction
Services
--- --- --- --- --- --- ---
Light - - - S - -
Heavy - - - - - -
Crop Production P P P P P -
Cultural and Library
Services
S PI PI PI - -
Custom Agricultural
Manufacturing
- - - - - -
Custom
Manufacturing
- PI - PI - -
Dairies - - - - - -
Eating
Establishments
Convenience S PI PI PI S U
Full Service S PI PI PI S U
Educational Services
Commercial S S S S - -
General S S S S - -
Equipment Sales
and Repair
Farm Machinery,
Sales
- - - - - -
Farm Machinery,
Repair
- - - - - -
Heavy Equipment - - - - - -
Leisure - - - S - -
Aircraft - - - - - -
Explosives Handling - - - - - -
Farm Services - - - - - -
Funeral and
Interment Services
Cemeteries - - - - - -
Interring and
Cremating
- - - S - -
--- --- --- --- --- --- ---
Undertaking - PI - PI - -
Gasoline Sales
Service - S - S S -
Combination - S - S S -
General Industrial
Limited - - - - - -
Intermediate - - - - - -
Heavy - - - - - -
Hazardous Industrial - - - - - -
High Technology
Industry
- - - - - -
Laundry Services - - - S - -
Liquor Sales
On-Premises,
General
- U - U - -
On-Premises,
Limited
S S S S S -
Of-Premises S PI - PI - -
Lodging Services
Bed and Breakfast - - - - - -
Motel - S - S S -
Major Impact
Services
- - - - - -
Medical Services S PI PI PI - -
Nursery Sales and
Services
Wholesale - - - S - -
Retail S PI - PI - -
Landscaping
Services
- S - S - -
Personal Storage - S - PI - -
Petroleum and Gas
Extraction
U U U U U U
--- --- --- --- --- --- ---
Produce Sales
Farm Produce
Stands
S PI - PI PI -
Farm Markets S PI PI PI S -
Professional
Services
S PI PI PI - -
Public Services
Administrative S PI PI PI PI -
Essential S S S S S S
Quarry Operations - - - - - -
Recreation -
Campgrounds - - - - - -
Indoor Participant S S - S - -
Indoor Spectator - U - U - -
Marinas - U - U - -
Outdoor
Entertainment, Large
Scale
- U - U - -
Outdoor
Entertainment, Small
Scale
S S - S - PI
Outdoor Sports
Clubs
- S - - - -
Parks - S S S S PI
Resorts - - - - - -
Nature Preserved - - - - - S
Recycling Services
Consumer S PI - PI PI -
Scrap Operations - - - - - -
Religious Assembly
Neighborhood S S - (S1) S - -
Community - (U1) U - (U1) U - -
--- --- --- --- --- --- ---
Regional - U - U - -
Research and
Laboratory Services
- - - S - -
Retail Sales and
Services
Primary S PI PI PI S -
Intermediate S PI - PI - -
General - S - S - -
Signs—Of Premises - - - - - -
Stables
Neighborhood - - - - - -
Commercial - - - - - -
Transportation
Services
- - - S - -
Truck Sales and
Services
Parking - - - - - -
Cleaning - - - - - -
Stops - - - - - -
Repairs - - - - - -
Sales - - - - - -
Terminals - - - - - -
Utility Services
Minor PI PI PI PI PI PI
Major - - - - - -
Wholesaling and
Distribution
Light - - - S - -
Heavy - - - - - -

1 Applies within Specific Plan III area of Mountain House.

(Ord. 3813 (part), 1994; Ord. 3974, § 6, 1998; Ord. 4276, § 9 (part), 2005; Ord. 4301, § 3, 2006; Ord. No. 4385, § 19, 1-12-2010; Ord. No. 4541, § 3, 11-5-2019)

TABLE 9-405.4M

TEMPORARY USES AND STRUCTURES IN COMMERCIAL ZONES

Legend: P Permitted Use PI Permitted Use With Improvement Plan S Use Permitted Subject to Site Approval - Use Not Permitted

Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
- Use Not Permitted
Temporary Use or Structure Commercial
Zone C-N
Commercial
Zone C-C
Commercial
Zone C-O
Commercial
Zone C-G
Commercial
Zone C-FS
Agricultural Excavation - - - - -
Auction, Agricultural Machinery - S - S -
Auction, Livestock - - - - -
Batch Plant - - - - -
Boutique Sales (limit of two (2)
per year)
P P P P P
Carnival/Circus - S S S S
Christmas Tree Sales PI PI PI PI PI
Corporation Yard S S S S S
Garage Sales (limit of four (4) per
year within Specifc Plan III, two
(2) per year in other areas)
P P P P P
Halloween Pumpkin Sales PI PI PI PI PI
Motion Picture Filming P P P P P
Special Event
Special Outdoor Event PI PI PI PI PI
Special Indoor Event PI PI PI PI PI
Subdivision Sales Ofce PI PI PI PI PI
Temporary Building Incidental To
Construction Works
P P P P P
Temporary Mobilehome - - - - -
Tent Revival - S - S -

(Ord. 3813 (part), 1994; Ord. 4276, § 9 (part), 2005)

CHAPTER 9-410M - COMMERCIAL ZONE LOT AND STRUCTURE REGULATIONS

Tables:

9-410.3M - LOT AREA.

The minimum lot area by commercial zone shall be the same as that specified in the development title. For purposes of referral, minimum lot area requirements are included in Table 9-410.3M.

(Ord. 3813 (part), 1994)

9-410.4M - LOT WIDTH.

The minimum lot width by commercial zone shall be the same as that specified in the development title. For purposes of referral, minimum lot area requirements are included in Table 9-410.3M.

(Ord. 3813 (part), 1994)

9-410.5M - SETBACKS.

Unless otherwise specified, buildings and structures shall meet the setback requirements specified in Table 9-410.3M. Said setback requirements and the following exceptions shall replace the chapter concerning yards and the general provisions concerning yard dimensions in the development title (Chapter 9-1010 and Section 9-410.5, respectively).

(a)

Side and Rear Setback Exceptions.

Buildings on lots zoned or designated on the Master Plan for commercial use shall maintain a forty-five degree (45°) clear setback when adjacent to lots zoned or designated on the Master Plan for residential use.

(b)

Setback Exceptions For Specified Streets and Street Types.

(1)

The minimum setback from I-205 and from Patterson Pass Road shall be as specified in the Master Plan.

(2)

The minimum setback from an adjacent arterial street in the C-N and C-C zones shall be twenty (20) feet for building facades without entries for the general public, and for service and loading areas.

(3)

The minimum setback from an adjacent collector street shall be ten (10) feet in the C-N zone, and twenty (20) feet in the C-C zone, for building facades without entries for the general public, and for service and loading areas.

(c)

Setback Exceptions for Off-Street Parking Areas.

(1)

The minimum setback for off-street parking areas adjacent to streets shall be twenty (20) feet, except in the following instances:

(A)

In the C-N zone, the minimum setback shall be ten (10) feet;

(B)

Along Patterson Pass Road, the minimum setback shall be thirty (30) feet.

(2)

The minimum setback for off-street parking areas adjacent to lots zoned or designated on the Master Plan for residential use shall be ten (10) feet.

(3)

The minimum side and rear setback for off-street parking areas in the C-O and C-FS zones shall be five (5) feet.

(d)

Setback Exceptions for Other Specified Structures.

(1)

Fire Escapes. Fire escapes shall not extend or project more than four (4) feet beyond the setback line.

(2)

Stairways and Balconies. Open, unenclosed stairways, or balconies not covered by a roof or canopy, shall not extend or project more than four (4) feet beyond the side or rear setback line, and shall not extend or project more than thirty (30) inches beyond the front setback line.

(3)

Porches. Porches, platforms or landing places which do not extend above the level of the first floor of the building shall not extend or project more than five (5) feet beyond the setback line; however, any open work

railing, no more than thirty (30) inches in height, may be installed or constructed on any such porch, platform or landing place.

(4)

Patio Covers. Patio covers, as defined by Chapter 49 of the Uniform Building Code, may be located within three (3) feet of the rear or side property line.

(5)

Eaves, Roof Overhangs and Similar Features. Eaves, roof overhangs and other similar architectural features may extend or project up to:

(A)

Thirty (30) inches beyond the setback line, provided said architectural feature is no closer than thirty (30) inches to the property line where the setback requirement is ten (10) feet or less;

(B)

Ten (10) feet beyond the setback line, where the setback requirement is more than ten (10) feet.

(6)

Fireplaces, Air Conditioning Equipment, Water Softener Units. Fireplaces, air conditioning units and water softening units may extend or project up to thirty (30) inches beyond the setback line, provided said structure is no closer than thirty (30) inches to the property line.

(7)

Pools. Pools shall not be located closer than three (3) feet from any side or rear property line.

(e)

Setback Exceptions for Specified Land Uses or Features.

(1)

County Line. Dwellings and nonresidential buildings shall maintain a minimum setback from the Alameda County Line as specified in the Master Plan.

(2)

Power Line Easements. Dwelling units shall maintain a minimum setback of twenty-five (25) feet from the Rio Oso-Tesla powerline easement. Non-residential structures shall maintain a minimum setback of ten (10) feet from the Rio Oso-Tesla powerline easement.

(3)

Mountain House Creek Corridor. Buildings shall maintain a minimum setback of fifty (50) feet from the Mountain House Creek Corridor.

(4)

Wetlands. Buildings and structures shall maintain a minimum setback from wetlands in accordance with the setback requirements for wetlands specified in the Wetlands Management Plan.

(Ord. 3813 (part), 1994)

9-410.6M - HEIGHT.

Buildings and structures in commercial zones shall not exceed the maximum building heights specified in Table 9-410.3M, except as provided below. Said exceptions shall be limited by any ordinance relating to airports, and shall serve to replace the chapter on height limits for special structures and the general provisions on building height in the development title (Chapter 9-1005 and Section 9-410.6, respectively).

(a)

Penthouse or roof structures for the housing of elevators, stairways, tanks, ventilating fans, or similar equipment required to operate and maintain the building;

(b)

Skylights and chimneys;

(c)

Flagpoles; and

(d)

Church towers/steeples.

(Ord. 3813 (part), 1994)

9-410.7M - BUILDING COVERAGE.

The maximum building coverage by zone for buildings and structures shall be the same as that specified in the development title. For purposes of referral, maximum building coverage regulations are included in Table 9-410.3.

(Ord. 3813 (part), 1994)

TABLE 9-410.3M

LOT AND STRUCTURE STANDARDS*

Zoning District Minimum Lot Size
(square feet)
Minimum Lot
Width (feet)
Maximum Building
Height (stories)
Maximum Bldg
Coverage (Percent)
C-N - 50 (-1) 2 60
C-C - 50 3 60
C-O 5,000 50 (-1) 3 60
--- --- --- --- ---
C-G - 50 3 60
C-FS - 50 5 60

Setback Requirements**

Zoning District Arterial Street (feet) Collector and Local
Streets (feet)
Side Setback (feet) Rear Setback (feet)
C-N 0 0 - -
C-C 0 0 - -
C-O 20 (101) 20 (101) 20 (101, 2) 15 (101)
C-G 20 20 - -
C-FS 30 20 20 20
  • See Sections 9-410.3M through 9-410.7M for exceptions and modifications.

** Unless otherwise specified, setbacks shall be measured from the planned ultimate right-of-way width of the roadway, as shown on the Master Plan or on any applicable Specific Plan.

Notes: Refer to Table 9-410.3 for depth to width ratio. Table 9-410.3 does not apply within Specific Plan III area of Mountain House.

  • 1 Applies within Specific Plan III area of Mountain House.

  • 2 Side setback for C-O is 20′ for the streetside side of corner lots in Specific Plan III area.

  • (Ord. 3813 (part), 1994; Ord. 4276, § 10, 2005; Ord. 4280, § 1, 2005)

CHAPTER 9-505M - INDUSTRIAL ZONE USE REGULATIONS

Tables:

9-505.2M - PERMITTED USE TYPES.

Permitted, not permitted and conditionally permitted use types shall be as provided in Table 9-505.2M.

(Ord. 3813 (part), 1994)

9-505.4M - TEMPORARY USES AND STRUCTURES.

Permitted, not permitted and conditionally permitted temporary uses and structures shall be as provided in Table 9-505.4M. Temporary uses or structures not specifically listed in Table 9-505.4M may be allowed, subject to approval of an Improvement Plan.

(Ord. 3813 (part), 1994)

9-505.5M - SPECIAL USE REGULATIONS IN INDUSTRIAL ZONES.

In addition to the requirements specified in the development title, the following provisions shall be applicable:

(a)

Automotive Sales and Services: Automotive Sales, Use Type. Uses classified under the Automotive Sales and Services: "Automotive Sales, Use Type" shall be adjacent to a freeway.

(b)

Medical Services Use Type.

(1)

Medical offices shall be designed and configured to appear as office type uses in those commercial zones where they are allowed.

(2)

Urgent care centers, and other facilities included under the medical services use type that provides emergency medical care, shall be situated on and accessed from arterial roadways. Said facilities shall be separated from residential and other sensitive land uses by means of an arterial roadway, landscape easement, or other effective buffer.

(c)

Public Services: Essential, Use Type.

Hospitals shall be situated on and accessed from arterial roadways. Said facilities shall be separated from residential and other sensitive land uses by means of an arterial roadway, landscape easement, or other effective buffer.

(Ord. 3813 (part), 1994)

9-505.10M - DESIGN GUIDELINES.

Design Guidelines shall be submitted for consistency review prior to approval of the final map or parcel map or other Development Permit.

(Ord. 4066, § 8, 2000)

TABLE - 9-505.2M USES IN INDUSTRIAL ZONES

Legend:

P Permitted Use

PI Permitted Use With Improvement Plan S Use Permitted Subject to Site Approval U Use Permitted Subject to Use Permit - Use Not Permitted

Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
Use Types Industrial Zone I-P Industrial Zone I-L Industrial Zone I-G
Residential Use Types
Family Residential
Single-Family - - -
Two-Family - - -
Small Multifamily - - -
Large Multifamily - - -
Farm Employee Housing
Small - - -
Large - - -
Group Care
Small - - -
Large - - -
Adult Day Care - - -
Farm Related - - -
Group Residential - - -
Mobile Home Park - - -
Shelters
Small - PI -
Medium - PI -
Large - - -
Nonresidential Use Types
Administrative Ofces PI PI PI
Administrative Support Services P P P
Adult Entertainment - - -
Aerial Services
Farm - - -
Heliport U U U
--- --- --- ---
Agricultural Organizations PI PI -
Agricultural Processing
Preparation Services - U S
Food Manufacturing - - S
Agricultural Sales
Feed and Grain - - PI
Agricultural Chemicals - - S
Agricultural Warehousing - - PI
Agricultural Wastes - - -
Animal Feeding and Sales - - -
Animal Raising
Exotic Animals - - -
General - - -
Hogs - - -
Small Animals - - -
Family Food Production - - -
Educational Animal Project - - -
Zoo - - -
Petting Zoo - - -
Animal Specialty Services
Farm - - -
Pet - U S
Kennel - U S
Kennel, Small Breeding - U S
Auction Sales
Indoor - S S
Outdoor - S S
Automotive Sales and Services
Automotive Rentals S S S
Automotive Repairs, Light - S S
Automotive Repairs, Heavy - S S
--- --- --- ---
Automotive Sales U - -
Cleaning - S PI
Inoperable Vehicle Storage - - S
Operable Vehicle Storage - S P
Parking S PI PI
Building Maintenance Services PI PI PI
Child Care Services
Family Day Care Homes P P P
Child Care Centers S S S
Communication Services
Type I PI PI PI
Type II - - -
Type III - - -
Type IV PI PI PI
Community Assembly - - -
Construction Sales - PI PI
Construction Services
Light - S PI
Heavy - U PI
Crop Production P P P
Cultural and Library Services - - -
Custom Agricultural Manufacturing - - -
Custom Manufacturing S PI PI
Dairies - - -
Eating Establishments
Convenience PI PI PI
Full Service PI PI PI
Educational Services
Commercial S PI PI
General - - -
Equipment Sales and Repair
--- --- --- ---
Farm Machinery, Sales - S PI
Farm Machinery, Repair - S PI
Heavy Equipment - U S
Leisure - S PI
Aircraft - U S
Explosives Handling - - -
Farm Services - - -
Funeral and Interment Services
Cemeteries - - -
Interring and Cremating - - -
Undertaking - - -
Gasoline Sales
Service S PI PI
Combination S PI PI
General Industrial
Limited S S PI
Intermediate - U S
Heavy - - S
Hazardous Industrial - U U
High Technology Industry S S S
Laundry Services - S S
Liquor Sales
On-Premises, General - - -
On-Premises, Limited - - -
Of-Premises - - -
Lodging Services
Bed and Breakfast - - -
Motel - - -
Major Impact Services - - -
Medical Services S - -
Nursery Sales and Services
--- --- --- ---
Wholesale - S S
Retail - - -
Landscaping Services - S S
Personal Storage - S PI
Petroleum and Gas Extraction S S S
Produce Sales
Farm Produce Stands - - -
Farm Markets - - -
Agricultural Store, Large - - -
Professional Services PI PI -
Public Services
Administrative S S S
Essential U U U
Quarry Operations - - -
Recreation
Campgrounds - - -
Indoor Participant PI PI PI
Indoor Spectator - (PI1) - -
Marinas - - -
Outdoor Entertainment, Large Scale - - -
Outdoor Entertainment, Small Scale - - -
Outdoor Sports Clubs - - U
Parks - - -
Resorts - - -
Nature Preserve - - -
Recycling Services
Consumer PI PI PI
Scrap Operations - - U
Religious Assembly
Neighborhood - - -
Community - - -
--- --- --- ---
Regional - - -
Research and Laboratory Service S S S
Retail Sales and Services
Primary U - -
Intermediate - - -
General - - -
Signs—Of Premises - - -
Stables
Neighborhood - - -
Commercial - - -
Transportation Services - S S
Truck Sales and Services
Parking - S PI
Cleaning - S PI
Stops - U U
Repairs S S S
Sales - S PI
Terminals - U U
Utility Services
Minor PI PI PI
Major PI PI PI
Wholesaling and Distribution
Light S (U1) S PI
Heavy - - S

1 Applies within Specific Plan III area of Mountain House.

(Ord. 3813 (part), 1994; Ord. 3974, § 7, 1998; Ord. 4276, § 11 (part), 2005; Ord. No. 4385, § 20, 1-12-2010; Ord. No. 4541, § 4, 11-5-2019)

TABLE - 9-505.4M TEMPORARY USES AND STRUCTURES IN INDUSTRIAL ZONES

Legend:

P Permitted Use

PI Permitted Use With Improvement Plan

S Use Permitted Subject to Site Approval

U Use Permitted Subject to Use Permit

  • Use Not Permitted

AX Permitted Subject to Agricultural Excavation Permit

Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
AX Permitted Subject to Agricultural Excavation Permit
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
AX Permitted Subject to Agricultural Excavation Permit
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
AX Permitted Subject to Agricultural Excavation Permit
Legend:
P Permitted Use
PI Permitted Use With Improvement Plan
S Use Permitted Subject to Site Approval
U Use Permitted Subject to Use Permit
- Use Not Permitted
AX Permitted Subject to Agricultural Excavation Permit
Temporary Use or Structure Industrial Zone
I-P
Industrial Zone
I-L
Industrial Zone
I-G
Agricultural Excavation AX (-1) AX AX
Auction, Agricultural Machinery - PI PI
Auction, Livestock - - -
Batch Plant - - S
Boutique Sales (limit of two (2) per year) P P P
Carnival/Circus - S S
Christmas Tree Sales PI PI PI
Corporation Yard S S S
Garage Sales (limit of four (4) per year within Specifc
Plan III, two (2) per year in other areas)
P P P
Halloween Pumpkin Sales PI PI PI
Motion Picture Filming P P P
Special Event PI PI PI
Subdivision Sales Ofce P P -
Temporary Building Incidental to Construction Works P P P
Temporary Mobilehome - - -
Tent Revival - U -

1 Applies within Specific Plan III area of Mountain House.

(Ord. 3813 (part), 1994; Ord. 4276, § 11 (part), 2005)

CHAPTER 9-510M - INDUSTRIAL ZONE LOT AND STRUCTURE REGULATIONS

Tables:

9-510.3M - LOT AREA.

The minimum lot area by industrial zone shall be the same as that specified in the development title. For purposes of referral, minimum lot area requirements are included in Table 9-510.3M.

(Ord. 3813 (part), 1994)

9-510.4M - LOT WIDTH.

The minimum lot width by industrial zone shall be the same as that specified in the development title. For purposes of referral, minimum lot area requirements are included in Table 9-510.3M.

(Ord. 3813 (part), 1994)

9-510.5M - SETBACKS.

Unless otherwise specified, buildings and structures shall meet the setback requirements specified in Table 9-510.3M. (See Table 4.1 of the Master Plan.) Said setback requirements and the following exceptions shall replace the chapter concerning yards and the provisions concerning yard dimensions in the development title (Chapter 9-1010 and Section 9-510.5, respectively).

(a)

Side and Rear Setback Exceptions.

Buildings on lots zoned or designated on the Master Plan for industrial use shall maintain a forty-five degree (45°) clear setback when adjacent to lots zoned or designated on the Master Plan for residential use.

(b)

Setback Exceptions for Specified Streets.

The minimum setback from I-205 and Patterson Pass Road shall be as specified in the Master Plan.

(c)

Setback Exceptions for Off-Street Parking Areas.

(1)

The minimum setback for off-street parking areas adjacent to streets shall be ten (10) feet, except that in the I-P zone the minimum setback shall be twenty (20) feet.

(2)

The minimum setback for off-street parking areas adjacent to lots zoned or designated on the Master Plan for residential use shall be ten (10) feet.

(3)

The minimum side and rear setback for off-street parking areas in the I-P zone shall be five (5) feet.

(d)

Setback Exceptions for Other Specified Structures.

(1)

Fire Escapes. Fire escapes shall not extend or project more than four (4) feet beyond the setback line.

(2)

Stairways and Balconies. Open, unenclosed stairways, or balconies not covered by a roof or canopy, shall not extend or project more than four (4) feet beyond the side or rear setback line, and shall not extend or project more than thirty (30) inches beyond the front setback line.

(3)

Porches. Porches, platforms or landing places which do not extend above the level of the first floor of the building shall not extend or project more than five (5) feet beyond the setback line; however, any open work railing, no more than thirty (30) inches in height, may be installed or constructed on any such porch, platform or landing place.

(4)

Patio Covers. Patio covers, as defined by Chapter 49 of the Uniform Building Code, may be located within three (3) feet of the rear or side property line.

(5)

Eaves, Roof Overhangs and Similar Features. Eaves, roof overhangs and other similar architectural features may extend or project up to:

(A)

Thirty (30) inches beyond the setback line, provided said architectural feature is no closer than thirty (30) inches to the property line where the setback requirement is ten (10) feet or less;

(B)

Ten (10) feet beyond the setback line, where the setback requirement is more than ten (10) feet.

(6)

Fireplaces, Air Conditioning Equipment, Water Softener Units. Fireplaces, air conditioning units and water softening units may extend or project up to thirty (30) inches beyond the setback line, provided said structure is no closer than thirty (30) inches to the property line.

(7)

Pools. Pools shall not be located closer than three (3) feet from any side or rear property line.

(e)

Setback Exceptions for Specified Land Uses or Features.

(1)

Power Line Easements. Dwelling units shall maintain a minimum setback of twenty-five (25) feet from the Rio Oso-Tesla powerline easement. Commercial or industrial structures shall maintain a minimum setback of ten (10) feet from the Rio Oso-Tesla powerline easement.

(2)

Wetlands. Buildings and structures shall maintain a minimum setback from wetlands in accordance with the setback requirements for wetlands specified in the Wetlands Management Plan.

(Ord. 3813 (part), 1994)

9-510.6M - HEIGHT.

Buildings and structures in industrial zones shall not exceed the maximum building heights specified in Table 9-510.3M, except as provided below. Said exceptions shall be limited by any ordinance relating to airports, and shall serve to replace the chapter on height limits for special structures and the general provisions on building height in the development title (Chapter 9-1005 and Section 9-510.6, respectively).

(a)

Penthouse or roof structures for the housing of elevators, stairways, tanks, ventilating fans, or similar equipment required to operate and maintain the building;

(b)

Skylights and chimneys;

(c)

Flagpoles; and

(d)

Church towers/steeples.

(Ord. 3813 (part), 1994)

9-510.7M - BUILDING COVERAGE.

The maximum building coverage by zone for buildings and structures shall be the same as that specified in the development title. For purposes of referral, maximum building coverage regulations are included in Table 9-510.3.

(Ord. 3813 (part), 1994)

9-510.8M - ACCESS.

All principal uses within the industrial zones of Specific Plan III shall have access to a County maintained road, a road maintained by the Mountain House Community Services District, or a privately maintained road with public access. Within other areas of Mountain House, all principle uses in the industrial zones shall have access to a County maintained road. Flag lots are not permitted in the industrial zones.

(Ord. 4276, § 12, 2005)

9-510.9M - CORNER LOTS.

Corner lots shall have minimum widths of one hundred (100) feet, except within the Specific Plan III area, where there shall be no required minimum lot width.

(Ord. 3813 (part), 1994; Ord. 4276, § 13, 2005)

TABLE 9-510.3M

LOT AND STRUCTURE STANDARDS*

Zoning District Minimum Lot Size
(square feet)
Minimum Lot
Width (feet)
Maximum Building
Height (stories)
Maximum Building
Coverage (Percent)
I-P 10,000 100 (N/A1) 3 (52) 60
I-L 10,000 100 2 60
I-G 10,000 100 2 60

Setback Requirements**

Zoning District Arterial Street (feet) Collector and Local
Streets (feet)
Side Setback (feet) Rear Setback (feet)
I-P 20 (-3) 20 (-3) - (-4) -
I-L 20 20 - -
I-G 15 15 - -
  • See Sections 9-510.3M through 9-510.9M for exceptions and modifications.

** Unless otherwise specified, setbacks shall be measured from the planned ultimate right-of-way width of the roadway, as shown on the Master Plan or on any applicable Specific Plan.

Notes: Refer to Table 9-510.3 for depth to width ratio, except within the Specific Plan III area, where there is no required depth to width ratio.

  • 1 Applies within Specific Plan III area of Mountain House.

2 Structures in Mountain House Business Park area are 5 stories.

3 Applies to side and rear setback within Specific Plan III area only; front setback within Specific Plan III area is 10′.

4 Streetside sides of corner lots within Specific Plan III area of Mountain House shall be set back 15′.

(Ord. 3813 (part), 1994; Ord. 4276, § 14, 2005; Ord. 4280, § 2, 2005)