Article 2 — Chapter 17.10

Tuolumne County Zoning Code · 2026-07 edition · ingested 2026-07-07 · Tuolumne County

AGRICULTURE AND OPEN SPACE ZONING DISTRICTS

Sections:

17.10.010 Purpose. 17.10.020 Exclusive Agricultural District, One Hundred Sixty Acre Minimum or (AE-160) District.

17.10.030 Exclusive Agricultural District, Eighty Acre Minimum or (AE-80) District. 17.10.040 Exclusive Agricultural District, Thirty-Seven Acre Minimum or (AE-37) District. 17.10.050 General Agricultural District, Twenty Acre Minimum, or (A-20) District. 17.10.060 General Agricultural District, Ten Acre Minimum, or (A-10) District. 17.10.070 Open Space District, or (O) District. 17.10.080 Open Space 1 District, or (O-1) District. 17.10.090 General Recreational District, or (K) District.

17.10.010 Purpose . This Chapter lists the agriculture and open space zoning districts and establishes regulations for permitted land uses, conditional uses, minimum parcel size, building intensity, and residential density.

A. Purposes of Agriculture and Open Space Zoning Districts:

  1. Exclusive Agricultural District, 160 Acre Minimum or (AE160) District. The purpose of the Exclusive Agricultural, 160 acre minimum (AE-160) District is to provide for agricultural and resource production where commercial agricultural uses can exist without encroachment of 4. incompatible uses and provide for the preservation and conservation of working landscapes and open space. 2. Exclusive Agricultural District, 80 Acre Minimum or (AE-80) District. The purpose of the Exclusive Agricultural, 80 acre minimum (AE-80) District is to provide for agricultural and resource production where commercial agricultural uses can exist without 5. encroachment of incompatible uses and

provide for the preservation and conservation of working landscapes and open space. Exclusive Agricultural District, 37 Acre Minimum or (AE-37) District. The purpose of the Exclusive Agricultural, 37 acre minimum (AE-37) District is to provide for agricultural and resource production where commercial agricultural uses can exist without encroachment of incompatible uses and provide for the preservation and conservation of working landscapes and open space. General Agricultural District, 20 Acre Minimum, or (A-20) District. The purpose of the General Agricultural, 20 acre minimum (A-20) District is to provide for country-estate living while maintaining large areas for the commercial production of food and fiber where such agricultural uses can exist without the encroachment of incompatible land uses. General Agricultural District, 10 Acre Minimum, or (A-10) District. The purpose of the

17-40

  • General Agricultural, 10 acre minimum (A-10) District is to provide for country-estate living on parcels less than 20 acres in area while maintaining areas for the commercial production of food and fiber where such agricultural uses can exist without the encroachment of incompatible land uses.

    1. Open Space District, or (O) District. The intent of the (O) District is to protect the public in areas not suitable for development because of flooding or other natural hazards and to provide areas of open space for the protection of wildlife habitat and scenic quality (including where vegetation removal may be appropriate in certain instances) or for the preservation of cultural resources.
  1. Open Space 1 District, or (O-1) District. The intent of the (O-1) District is to preserve and protect areas of valuable wildlife habitat consistent with the wildlife policies of the General Plan or areas with significant cultural resources.

  2. General Recreational District, or (K) District. The purpose of the general recreational (K) District is to provide for the development of indoor and outdoor sports, recreation facilities and commercial places of amusement.

17.10.020 Exclusive Agricultural District, One Hundred Sixty Acre Minimum or (AE-160)…

A. Allowed Uses. Table 17.10.1 lists uses allowed and the level of review required within the Exclusive Agricultural, 160 acre minimum (AE-160) District.

B. Minimum Parcel Size. Within any Exclusive Agricultural, 160 acre minimum

(AE-160) District, no parcel of real property shall be divided or reconfigured where any parcel so created will be less than 160 gross acres in area or will have an area to perimeter ratio of less than 210, as calculated or confirmed by the County Surveyor. An existing parcel that does not meet the minimum parcel or area to perimeter ratio regulations may be reconfigured to a resulting parcel that does not meet the minimum parcel size or area to perimeter ratio provided the reconfiguration does not result in a decrease in the size of the existing parcel and in the area to perimeter ratio of the existing parcel. Parcels resulting from a merger shall be exempt from the minimum parcel size and the area to perimeter ratio requirements.

C. Agricultural Laborer Housing. Notwithstanding Section 17.10.020(C), a parcel of real property within an agricultural preserve may be divided to create a parcel of less than or equal to five acres for sale or lease for agricultural laborer housing as provided in Section 51230.2 of the California Government Code.

D. Building Intensity. Within any Exclusive Agricultural, 160 acre minimum (AE-160) District, the maximum building intensity shall be two dwellings per 160 acres. The maximum ratio of the coverage of all buildings on a parcel, referred to as the floor area ratio (FAR), shall be 0.1. Additional units/building coverage are possible for agricultural laborer housing in accordance with state law or through a density bonus for the provision of affordable housing in accordance with the California Government Code.

17.10.030 Exclusive Agricultural District, Eighty Acre Minimum or (AE-80) District.

A. Allowed Uses. Table 17.10.1 lists uses allowed and the level of review required within the Exclusive Agricultural, 80 acre minimum (AE-80) District.

B. Minimum parcel size. Within any Exclusive Agricultural, 80 acre minimum (AE80) District, no parcel of real property shall be divided or reconfigured where any parcel so created will be less than 80 gross acres in area or will have an area to perimeter ratio of

17-41

less than 210, as calculated or confirmed by the County Surveyor. An existing parcel that does not meet the minimum parcel or area to perimeter ratio regulations may be reconfigured to a resulting parcel that does not meet the minimum parcel size or area to perimeter ratio provided the reconfiguration does not result in a decrease in the size of the existing parcel and in the area to perimeter ratio of the existing parcel. Parcels resulting from a merger shall be exempt from the minimum parcel size and the area to perimeter ratio requirements.

C. Agricultural laborer housing. Notwithstanding Section 17.10.030(C), a parcel of real property within an agricultural preserve may be divided to create a parcel of less than or equal to five acres for sale or lease for agricultural laborer housing as provided in Section 51230.2 of the California Government Code.

D. Building intensity. Within any Exclusive Agricultural, 80 acre minimum (AE80) District, the maximum building intensity shall be two dwellings per 80 acres. The maximum ratio of the coverage of all buildings on a parcel, referred to as the FAR, shall be 0.1. Additional units/building coverage are possible for agricultural laborer housing in accordance with state law or through a density bonus for the provision of affordable housing in accordance with the California Government Code.

17.10.040 Exclusive Agricultural District, Thirty-Seven Acre Minimum or (AE-37) District.

A. Allowed uses. Table 17.10.1 lists uses allowed and the level of review required within the Exclusive Agricultural, 37 acre minimum (AE-37) District.

B. Minimum parcel size. Within any Exclusive Agricultural, 37 acre minimum (AE-37) District, no parcel of real property shall be divided or reconfigured where any parcel so created will be less than 37 gross acres in area or will have an area to perimeter ratio of less than 210, as calculated or confirmed by the County Surveyor. An existing parcel that does not meet the minimum parcel or area to perimeter ratio regulations may be reconfigured to a

resulting parcel that does not meet the minimum parcel size or area to perimeter ratio provided the reconfiguration does not result in a decrease in the size of the existing parcel and in the area to perimeter ratio of the existing parcel. Parcels resulting from a merger shall be exempt from the minimum parcel size and the area to perimeter ratio requirements.

C. Agricultural laborer housing. Notwithstanding Section 17.10.030(C), a parcel of real property within an agricultural preserve may be divided to create a parcel of less than or equal to five acres for sale or lease for agricultural laborer housing as provided in Section 51230.2 of the California Government Code.

D. Building intensity. Within any Exclusive Agricultural, 37 acre minimum (AE37) District, the maximum building intensity shall be two dwellings per 37 acres. The maximum ratio of the coverage of all buildings on a parcel, referred to as the FAR, shall be 0.1. Additional units/building coverage are possible for agricultural laborer housing in accordance with state law or through a density bonus for the provision of affordable housing in accordance with the California Government Code.

17.10.050 General Agricultural District, Twenty Acre Minimum, or (A-20) District.

A. Allowed uses. Table 17.10.1 lists uses allowed and the level of review required within the General Agricultural, twenty acre minimum (A-20) District.

B. Minimum parcel size. Within any General Agricultural, twenty acre minimum (A-20) District, no parcel of real property shall be divided or reconfigured where any parcel so created will be less than 20 gross acres in area or have an average width of less than 500 feet. An existing parcel that does not meet the minimum parcel size or average width regulations may be reconfigured to a resulting parcel that does not meet the minimum parcel size and average width requirements provided the reconfiguration does not result in a decrease in the size of the existing parcel and in the average width of the existing parcel. Parcels resulting from a

17-42

merger shall be exempt from the minimum parcel size and average width requirements.

C. Building intensity. Within any General Agricultural, twenty acre minimum (A-20) District, the maximum building intensity shall be one dwelling per 10 acres. The maximum ratio of the coverage of all buildings on a parcel, referred to as the FAR, shall be 0.2. Additional units/building coverage are possible for agricultural laborer housing in accordance with state law or through a density bonus for the provision of affordable housing in accordance with the California Government Code.

17.10.060 General Agricultural District, Ten Acre Minimum, or (A-10) District.

A. Allowed uses. Table 17.10.1 lists uses allowed and the level of review required within the General Agricultural, ten acre minimum (A-10) District.

B. Minimum parcel size. Within any General Agricultural, ten acre minimum (A10) District, no parcel of real property shall be divided or reconfigured where any parcel so created will be less than ten gross acres in area. An existing parcel that does not meet the minimum parcel size regulation may be reconfigured to a resulting parcel that does not meet the minimum parcel size provided the reconfiguration does not result in a decrease in the size of the existing parcel. Parcels resulting from a merger shall be exempt from the minimum parcel size requirement.

C. Building Intensity. Within any General Agricultural, ten acre minimum (A-10) District, the maximum residential building intensity shall be one dwelling per 10 acres. The maximum ratio of the coverage of all buildings on a parcel, referred to as the FAR, shall be 0.2. Additional units/building coverage are possible for agricultural laborer housing in accordance with state law or through a density bonus for the provision of affordable housing in accordance with the California Government Code.

17.10.070 Open Space District, or (O) District.

A. Allowed uses. Table 17.10.1 lists uses allowed and the level of review required within the O District.

B. Minimum parcel size. None.

C. Building intensity. Due to the

limitations on structures allowed, building intensity standards are not applicable to this zoning district.

D. Differentiation of open or green space. References in this Title to green or open space areas shall not be interpreted as area designated as Open Space zoning. Only area zoned Open Space is subject to the allowed uses in Table 17.10.1.

17.10.080 Open Space 1 District, or (O-1) District.

A. Allowed uses. Table 17.10.1 lists uses allowed and the level of review required within the O-1 District are as follows.

B. Minimum parcel size. None.

C. Building intensity. Due to the limitations on structures allowed, building intensity standards are not applicable to this zoning district.

D. Differentiation of open or green space. References in this Title to green or open space areas shall not be interpreted as area designated as Open Space zoning. Only area zoned Open Space is subject to the allowed uses in Table 17.10.1.

17.10.090 General Recreational District, or (K) District.

A. Allowed uses. Table 17.10.1 lists uses allowed and the level of review required within the general recreational (K) District.

B. Minimum parcel size. Within any general recreational (K) District, no parcel of real property shall be divided or reconfigured where any parcel so created will be less than 5,000 square feet (net acreage) in area. An existing parcel that does not meet the minimum size regulation may be reconfigured to a resulting parcel that does not meet the minimum parcel size provided the reconfiguration does not result in a decrease in the size of the existing parcel. Parcels resulting from a merger shall be

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exempt from the minimum parcel size requirement.

C. Building intensity. Within any general recreational (K) District, the maximum residential building intensity shall be one dwelling per 5,000 square feet. The maximum ratio of the coverage of all buildings on a parcel, referred to as the FAR, shall be 0.5. Additional units/building coverage are possible through a density bonus for the provision of affordable housing in accordance with the California Government Code.

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TABLE 17.10.1 ALLOWED LAND USES AND PERMIT REQUIREMENTS

Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Residential Uses
One single-family dwelling
perparcel
P P P P P P1
One additional single-family
dwelling
P2 P3 P4 P5 P6
A second additional single-
family dwelling, one
unit per 10 acres
maximum density
C C
Accessory dwelling unit P P P P P P Ch. 17.36
Junior accessory dwelling
unit
P P P P P P Ch. 17.36
One guesthouse per parcel P P P
Agricultural laborer housing P P P P P P
Employee housing for six
persons or less
P P P P P P
Residential care homes of
any size regardless of
state licensing
P7 P7 P7 P7 P7 P7
Day care centers for not
more than eight
nonemployee occupants
P7 P7 P7 P7 P7 P7
Transitional housing and
supportive housing
within a permitted
single-familydwelling
P P P P P P
Small or large family day
care home within a
P P P P P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
permitted or
conditional use single-
family dwelling,
subject to the
requirements of
Chapter 17.54
Day care centers other than
family day care homes;
C C C C C C
Additional single-family
dwellings, 160 acres
per unit maximum
density
C
Additional single-family
dwellings, 80 acres per
unit maximum density
C
Additional single-family
dwellings, 37 acres per
unit maximum density
C
Mobile home on permanent
foundation
P P P P P P
Agricultural and Resources Uses
General farming and
ranching
P8 P8 P8 P P C
General farming and
ranching with no
buildings
C9 P
Nurseries and greenhouses
for domestic use
P P P P P P
Agricultural processing
facilities and activities
P10,11 P10, 11 P10, 11 P10,12 P10,13
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
related to the
agricultural product
grown on theparcel
Agricultural marketing
facilities or activities
P P P P P
Agricultural by-product
processing facilities
accessory to the
agricultural operation
on the parcel, including
commercial
compostingfacilities
P P P P P
Agricultural by-product
processing facilities
not accessory to the
agricultural operation
on the parcel, including
commercial
compostingfacilities
C C C C C
U-pick operations P P P P P
Growing and harvesting
timberproducts
P P P P P C9
Sawmills for processing
timber grown primarily
on the same parcel
where the sawmill is
located and other
parcels under the same
ownership
P P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Sawmills for processing
timber grown only on
the same parcel where
the sawmill is located
P
Sawmills for processing
timber other than that
grown primarily on the
same parcel where the
sawmill is located and
other parcels under the
same ownership
C C C
Sawmills for processing
timber not grown on
the same parcel where
the sawmill is located
C
Sawmills C
Commercial stables, up to
20 stalls, and riding
clubs including, but not
limited to, accessory
shows and clinics
P P P P14 P14 P
Commercial stables with
more than 20 stalls and
riding clubs including,
but not limited to,
accessory shows and
clinics
C C C C C P
Open space, including uses
and land management
activities authorized or
required by a wildlife
habitat management
P P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
plan, submerged area
plan, recreation master
plan, scenic corridor
management plan, or
other plan for open
space use approved by
the Board of
Supervisors for land
within an agricultural
preserve in accordance
with Tuolumne County
Resolution 106-04, that
are not listed as
conditional uses
Agricultural support
services
C C C
Livestock feed yards,
stockyards, auction
yards, animal
processing facilities, or
rendering plants
C C C C C
Agricultural hospitality
facilities
C C C
Nonriparian vegetation
removal in accordance
with Section 4290 of
the California Public
Resource Code23
P P
Riparian vegetation removal
in accordance with
Section 4290 of the
California Public
P15 C
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Resources Code,
subject to approval of
the Director23
Removal of vegetation by
hand only when
necessary for reasons
of health or safety to
protect persons
residing on or utilizing
the parcel, subject to
approval of the
Director23
P P
Planting vegetation to
implement a
revegetation or habitat
enhancement plan
permitted in
conjunction with
another entitlement for
which an
environmental review
under the California
Quality Act (CEQA) has
been approved or as
otherwise approved by
the director
P P
Use and land management
activities authorized or
required by a wildlife
habitat area
management plan,
submerged areaplan,
P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
scenic corridor
management plan, or
other plan for open
space use approved by
the Board of
Supervisors for land
within an agricultural
preserve in accordance
with Tuolumne County
Resolution 106-04, that
are not listed as
conditional uses.
Vegetation removal not
related toSection 4290
of the California Public
Resource Code23
C9 C16
Christmas tree farms C9 P
Educational workshops,
craft demonstrations,
or demonstration
gardens accessory to
the primary
agricultural use of the
parcel
P P P P P
Educational workshops,
craft demonstrations
and demonstration
gardens not accessory
to the primary
agricultural use of the
parcel
C C C C C
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Commercial events on
agricultural land
subject to the
requirements of
Chapter 17.48
P P P P C
Commercial events on
agricultural land not in
compliance with the
requirements of
Chapter 17.48
C C C C C
Seasonal activities
including, but not
limited to, crop mazes,
pumpkin patches and
berry harvests
accessory to the
primary agricultural
use of theparcel
P P P P P Ch. 17.92
Petting zoo accessory to the
primary agricultural
use of theparcel
P P P P P
Roadside stand up to one
thousand five hundred
(1,500) square feet in
area
P P P P P
Roadside stand exceeding
one thousand five
hundred (1,500) square
feet in area
C C C C C
Energy generating facilities
accessory to the
primaryagricultural
P P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
use on the farm or
ranch
Recreational development,
accessory to a primary
agricultural use
including, but not
limited to, hiking,
nonmotorized biking,
hunting, fishing,
boating, swimming,
horseback riding,
wagon rides,
picnicking, cattle
drives, and nature
walks
P P P P P
Institutional and Recreation Uses
Public safety facilities P P P P P
Recreational vehicle parks
and campgrounds
C
Places of public assembly,
social clubs, lodges,
and club houses
C
Roads, driveways, trails,
bridges, underground
public utilities,
noncommercial
gardens, wells, or
sewage disposal
systems permitted in
conjunction with
another entitlement for
P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
which environmental
review under CEQA
has been conducted
Sewage disposal systems P P P P P C C16,17 P
Refuse and sewage disposal
sites and water and
sewer treatmentplants
C
Wells P P P P P C9 C16 P
Wireless Communication
Facilities
C C C C C C Ch. 17.94
Docks, boat ramps, pilings,
retaining walls,
walkways and
accessory structures on
parcels fronting on
lakes or reservoirs
unless prohibited by
the agency having
jurisdiction over the
lake, reservoir or water
therein
C9 C16
Roads, driveways or bridges
where access through
another district is not
feasible
C9 C16
Private airstrips and private
heliports
P P P
Reservoirs for storage of
water byapublic utility
P P P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Libraries, museums, art
galleries, tourist
information facilities
C C P
Schools (public, private,
and alternative)
C C C C C P
Places of worship C C C C C P
Cemeteries, mausoleums,
columbaria and
crematoria when in
conjunction with a
cemetery
C C C C C
Recreational development,
including uses
authorized in a master
plan for recreational
facilities for use by the
public subject to
approval by the Board
of Supervisors for land
within an agricultural
preserve in accordance
with Tuolumne County
Resolution 106-04
C C C C C C9 C16 P16,18
Commercial
shooting/archery
ranges and trap
shooting
C C C
Off-road vehicle courses
and trails
C C C C C
On- and off-shore marina
facilities
C C C C C P
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Firehouses and police
stations
P
Public transportation
stations or depots
C
Commercial Uses
Bed and breakfast
establishments, not to
exceed six guest
bedrooms
P7 P7 P7 P7 P7
Farm stay, not to exceed six
guest bedrooms
P7 P7 P7 P7 P7
Farm stay, not to exceed six
guest bedrooms other
than within a permitted
single-familydwelling
C
Guest ranch, not to exceed
six guest bedrooms or
sufficient bedrooms to
accommodate 20
persons, whichever is
less
P P P P P7 P
Guest ranch exceeding six
guest bedrooms or
sufficient bedrooms to
accommodate 20
persons, whichever is
less
C C C C C
Guest ranch other than
within a permitted
single-family dwelling
or exceedingsixguest
C
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
bedrooms or sufficient
bedrooms to
accommodate 20
persons, whichever is
less
Animal hospitals, veterinary
clinics, kennels, or
animal boarding
facilities
C C C C C
Animal hospitals, indoors P
Bars C19
Gas stations C
Outdoor sales and storage C Ch. 17.90
Weddings and Commercial
Events20
P P P P C C Ch. 17.48
Tent revivals, circuses, and
carnivals
C C C C C C
Museums C C C
Zoo or exotic animal park C C C
Farmers markets P P P P
Motorcycles, snowmobiles,
and auto clubs and
facilities including
trails, test areas, and
racetracks
C
Commercial coaches P P P P P Ch. 17.70
Industrial Uses
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Small scale development of
mineral resources,
provided surface
development does not
occur within 200 feet of
any exterior property
line
P P P P P
Large scale development of
mineral resources or
surface development of
mineral resources
within 200 feet of any
exteriorpropertyline
C C C C C
Development of aggregate
resources
C
Prospecting P P P P P C9 C16 P
Storage of petroleum
products for use in
conjunction with the
primary agricultural
use of theparcel
P P P P P
Commercial refuse and
sewage sludge
disposal sites and
public water and sewer
treatmentplants
C C C C C
Green waste uses C C C C C
Public utility uses C C C C C C9 C16 C
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Commercial alternative
energy generating
facilities, including, but
not limited to, wind
power facilities
C C C C C
Biomass facilities P21 P21 P21
Non-Commercial Solar
power generation
facilities/equipment
P P P P P C C P Ch. 17.88
Airports and heliports C C C C C C
Public utility distribution
facilities
P
Communications Facilities
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Construction, alteration, or
maintenance of gas,
water, sewer, electrical,
communication or
other public utility
distribution facilities,
except as otherwise
provided in this Code
P P P P P
Temporary Uses
Temporary sales offices for
parcels and residences
C C C
Key Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
Blank Cell – Not Permitted
“P” – Permitted without Discretionary Review
“C” – Discretionary Review Required
--- --- --- --- --- --- --- --- --- ---
A.
Land Use Classification
B.
AE-160
C.
AE-80
D.
AE-37
E.
A-20
F.
A-10
G.
O
H.
O-1
I.
K
J.
Additional
Regulations
Accessory Uses
Private garages accessory
to a single-family
dwelling, or one
private garage, not to
exceed 4,000 square
feet, as a primary use
of theparcel
P P P P P P21
Accessory uses and
structures appurtenant
topermitted uses
P P P P P P
Accessory uses and
structures appurtenant
to conditional uses
C C C C C C

1 Shall not be converted to a recreational use unless it is brought into compliance with Title 15 of this Code relative to fire safety standards.

2 When the parcel is 160 acres or larger.

3 When the parcel is 80 acres or larger.

4 When the parcel is 37 acres or larger.

5 Or one guesthouse when the parcel is 20 acres or larger.

6 Or one guesthouse when the parcel is 10 acres or larger.

  • 7 Within a permitted single-family dwelling.

8 Including uses and land management activities authorized or required by an agricultural production management plan approved by the Board of Supervisors for land within an agricultural preserve in accordance with Tuolumne County Resolution 106-04, that are not listed as conditional uses.

9 Only if it is found that the use does not conflict with the scenic or wildlife habitat value of the parcel or the preservation of cultural resources, or cause additional flooding, drainage, or fire hazards.

10 Use becomes conditional when facilities and activities are not for the agricultural product grown on the parcel. When conditional, the use cannot be substantially detrimental to surrounding agricultural operations, the primary agricultural use of the parcel or to neighboring parcels.

11 Not to exceed 10% of the parcel size or 10 acres, whichever is less. Use becomes conditional when it exceeds 10% of the parcel size or 10 acres, whichever is less.

12 Not to exceed 10% of the parcel size or 5 acres, whichever is less. Use becomes conditional when it exceeds 10% of the parcel size or 5 acres, whichever is less

13 Not to exceed 10% of the parcel size or 2 acres, whichever is less. Use becomes conditional when it exceeds 10% of the parcel size or 2 acres, whichever is less.

14 Site Development Permit required for events with more than 20 horses.

15 Director approval required. If denied by the Director, then goes to Use Permit.

16 Only permitted if the use does not conflict with the wildlife habitat value of the parcels or with the preservation of cultural resources.

17 Applies to residential uses only.

18 RV parks and campgrounds require a Conditional Use Permit.

19 Not permitted within two hundred feet of residential district.

20 Where a fee is required.

21Only permitted on property with direct access from state highway.

22 Garage is not to exceed a building coverage of 25% of the parcel or 4,000 square feet, whichever is less.

23 Removal of vegetation in non-Open Space zoning district is considered customary and incidental.