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Title 9 — DEVELOPMENT TITLE

Chapter 3 — OTHER ZONES: LOT AND STRUCTURE REGULATIONS

Mountain House Zoning Code · 2026-06 edition · updated 2026-07-25 · Mountain House

9-7-301 - Intent.

The intent of this Chapter is to regulate the size and width of individual lots, but not zones; the location and height of structures on lots; and the physical character and intensity of lot usage within the Other Zones consistent with the policies and principles of the General Plan.

(Ord. 2024-18, § 1(Exh. A), 2024)

9-7-302 - Lot Area.

Lots within the Other Zones shall have the minimum areas set forth in Table 9-7-3.1.

(Ord. 2024-18, § 1(Exh. A), 2024)

9-7-303 - Lot Width.

Lots within the Other Zones shall not have a width less than that set forth in Table 9-7-3.1.

(Ord. 2024-18, § 1(Exh. A), 2024)

9-7-304 - Yard Dimensions.

Unless otherwise specified, buildings and structures shall meet the setback requirements specified in Table 9-710.2M. Said setback requirements and the following exceptions shall replace the chapter concerning yards and the provisions concerning yard dimensions in the development title (Chapter 3 of Division 10).

(a)

Side and Rear Setback Exceptions. Buildings on lots zoned P-F, or designated P on the Master Plan, 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 Off-Street Parking Areas.

(1)

The minimum setback for off-street parking areas adjacent to streets shall be ten (10) feet in the P-F zone.

(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.

(c)

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.

(d)

Setback Exceptions for Specified Land Uses or Features.

(1)

Power Line Easements. Buildings shall maintain a minimum setback of ten (10) feet from the Rio Oso-Tesla powerline easement.

(2)

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

(3)

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.

(4)

Wastewater Storage Ponds and Sludge Basins. Wastewater storage ponds and sludge basins shall be setback from property lines a minimum of twenty (20) feet.

(Ord. 2024-18, § 1(Exh. A), 2024)

9-7-305 - Height.

Buildings and structures in the P-F and M-X zones shall not exceed the maximum building heights specified in Table 9-7-3.1, except as provided below. (See Table 4.1 of the Master Plan.)

(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. 2024-18, § 1(Exh. A), 2024)

9-7-306 - Building Coverage.

The maximum building coverage for the P-F and M-X zones shall be as provided in Table 9-7-3.1.

(Ord. 2024-18, § 1(Exh. A), 2024)

9-7-307 - Corner Lots.

In the M-X zone, corner lots shall have a minimum width and depth of sixty-five (65) feet.

TABLE 9-7-3.1 LOT AND STRUCTURE STANDARDS

Zoning District Minimum Lot Size
(square feet)
Minimum Lot Width
(feet)
Maximum Building
Height (stories)
Maximum Building
Coverage (percent)
P-F - - - 100 (601)
M-X - 50 4 100

SETBACK REQUIREMENTS**

Zoning District Arterial Street (feet) Collector and Local
Streets (feet)
Side Setback (feet) Rear Setback (feet)
P-F 15 15 - -
M-X - -
  • See Sections 9-7-303 through 9-7-307 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.

1

Applies within Specific Plan III area of Mountain House.

(Ord. 2024-18, § 1(Exh. A), 2024)

DIVISION 8. - APPLICATION REGULATIONS

CHAPTER 1. - APPLICATION REGULATIONS: INTENT AND ORGANIZATION

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