Zoneomics Logo
search icon

Colusa County Unincorporated
City Zoning Code

44-2.60 Natural

Resources Zoning Classifications.

(Ord. No. 765 § 2 (Exh. A) (part))

44-2.60.10 Purpose of the Natural Resources Zones.

(a) River Frontage (R-F). The purpose of the R-F zone is to identify lands which lie within river, stream, or tidal channels, and to adjacent areas which are periodically inundated, or which are predicted to be inundated, by a “design flood.” Appropriate uses in the R-F zone include agricultural and recreational uses that do not include permanent structures.

(b) Flood Management (F-M). The F-M zone is intended to be applied to areas other than River Frontage areas which have been inundated by overflow floodwaters in the past, and which may reasonably be expected to be inundated by such floodwaters in the future. The Flood Management zone is intended to limit the use of areas subject to such inundation and flooding to protect lives and property from loss, damage, and destruction due to floodwaters and the transportation by water of wreckage and debris. Appropriate uses within the F-M zone include agricultural activities and resource management activities that do not impede flood flows.

(c) Forest Residential (F-R). The F-R zone is intended to allow for the development of limited single-family residential uses on privately owned parcels in the Mendocino National Forest, and to identify development standards addressing adequate access, fire hazard protection and management, water quality, and water supply.

(d) Forest Management and Recreation (FMR). The FMR zone is intended to accommodate a range of forest resource production activities, such as timber production, mining, and grazing, as well as forest-related recreational uses.

(e) Resource Management (R-M). The R-M zone identifies areas where the managed and deliberate protection of natural resources is appropriate, or where natural resource conservation easements have been applied that restrict development of the land. This designation is applied to rangelands under federal ownership, the National Wildlife Refuges, designated wild and scenic lands, and habitat, watershed, and natural resource lands requiring management and protection. Lands designated Resource Management are intended to ensure that resources are conserved and protected for existing and future generations through active or passive oversight and management of the resources. (Ord. No. 765 § 2 (Exh. A) (part))

44-2.60.20 Development Standards in the Natural Resources Zones.

(a) General Standards. Allowed uses and associated structures shall comply with the following development standards, in addition to any other applicable requirements of this Title, unless a variance is obtained in compliance with Section 44-1.90.050. Table 44-2.60-1 identifies the development standards applicable to the Natural Resources Zones.

TABLE 44-2.60-1: DEVELOPMENT STANDARDS IN THE NATURAL RESOURCES ZONES 

Development Standards – River Frontage (R-F), Flood Management (F-M), Forest Residential (F-R), Forest Management and Recreation (FMR), and Resource Management (R-M)

 

Zoning Classifications

R-F

F-M

F-R

FMR

R-M

Special Regulations

Parcel Size and Density

Minimum Parcel Size [1]

0.5 ac

1 ac

40 ac

 

160 ac[2]

 

Minimum Parcel Width

None

60 ft

100 ft

 

None

 

Minimum Parcel Depth

None

100 ft

200 ft

 

None

 

Maximum Dwelling Units per Parcel

1

-

1

 

1

 

Minimum Dwelling Units per Parcel

-

-

-

 

-

 

Setbacks and Height Standards

Minimum Setbacks

Front

None

10 ft

25 ft

 

None

 

Rear

None

10 ft

25 ft

 

None

 

Side

None

10 ft

10 ft

 

None

 

Maximum Structure Height

30 ft[3]

30 ft[3]

30 ft

 

25 ft

 

Notes:

[1] Applicably solely to parcels newly created through lot split or subdivision

[2] 40-acre minimum parcel size if contiguous to an existing wildlife refuge

[3] If buildings are required to be elevated on stilts to protect against flood damage, maximum structure height is 25 feet above building floor elevation.

(b) Performance Standards. The following performance standards apply to permitted uses in the Forest Residential Zone identified in Table 44-2.60-2. Projects that cannot meet the following performance standards shall be elevated to a minor use permit.

(1) Water and sewer. Adequate capacity for provision of on-site water and sewer service consistent with the requirements of the Department of Environmental Health shall be demonstrated to the satisfaction of the Director.

(2) Flood management. Development shall comply with Chapter 33 (Flood Damage Prevention).

(3) Drainage and water quality. There shall be no net increase in off-site drainage flows, including peak flows during a storm event, and water quality measures shall be implemented to reduce stormwater pollutants.

(4) Roadway and access improvements. The project shall demonstrate adequate roadway and access improvements consistent with County standards to ensure adequate emergency services access.

(5) Fire protection. The project shall demonstrate adequate fire protection measures to the satisfaction of the Chief Building Official. (Ord. No. 765 § 2 (Exh. A) (part))

44-2.60.30 Allowed Uses in the Natural Resources Zones.

Table 44-2.60-2 identifies land uses allowed in the natural resource zones.

TABLE 44-2.60-2: ALLOWED USES IN THE NATURAL RESOURCES ZONES 

Allowed Uses – River Frontage (R-F), Flood Management (F-M), Forest Residential (F-R), Forest Management and Recreation (FMR), and Resource Management (R-M)

P = Permitted Use

A = Administrative Permit

M = Minor Use Permit

U = Use Permit

T = Temporary Use Permit

- = Use not allowed

Zoning Classifications

R-F

F-M

F-R

FMR

R-M

Special Regulations

Agricultural and Agricultural Support Uses

Agricultural Processing, Off-Site Products

-

-

-

 

-

 

Agricultural Processing, On-Site Products

-

U

U

 

-

 

Animal Grazing

P

P

P

 

P

 

Animal Processing and Rendering

-

-

-

 

-

 

Animal Raising and Keeping, Commercial

-

U

M

 

M

 

Animal Raising and Keeping, Private

P

P

P

 

P

 

Apiaries

P

P

P

 

P

 

Accessory Structures to Primary Agricultural Use

U

U

P

 

P

 

Crop Production and Cultivation, Including Orchards and Vineyards

P

P

P

 

P

 

Dairy

-

-

-

 

-

 

Intensive Animal Operations

-

-

-

 

-

 

Nurseries and Greenhouses

-

P

P

 

P

 

Private Farm Airstrips

-

-

-

 

-

 

Stables, Commercial

-

U

-

 

-

 

Stables, Private

-

U

P

 

M

 

Visitor-Serving Agricultural Support Use

-

-

-

 

-

 

Wineries

-

-

-

 

-

 

Natural Resource Uses

Energy Generation for Off-Site Use

-

U

-

 

U

44-2.80.020

Energy Generation for On-Site Use

-

M

P

 

M

 

Forestry and Logging

-

-

P

 

M

 

Mining

U

U

-

 

U

Chapter 9A

Oil and Gas Extraction

U

U

U

 

U

 

Timber Processing

-

-

U

 

-

 

Habitat Mitigation and Management

U

U

-

 

P

44-5.30

Commercial Uses

Agricultural Product Sales, Off-Site

-

-

-

 

-

 

Agricultural Product Sales, On-Site

-

U

P

 

-

 

Agriculture Auction and Sales Yards

-

-

-

 

-

 

Agriculture Chemicals Manufacture, Distribution, Use and Storage

-

-

-

 

-

 

Animal Hospitals and Kennels

-

-

-

 

-

 

Bars, Nightclubs, and Lounges

-

-

-

 

-

 

Bed and Breakfast

-

-

P

 

-

 

Commercial Recreation, Indoor

-

-

-

 

-

 

Commercial Recreation, Outdoor

M

M

M

 

M

 

Construction, Maintenance, and Repair Services

-

-

-

 

-

 

Equipment Sales and Rental

-

-

-

 

-

 

Farm Equipment: Sale, Rental, Repair and Supplies

-

-

-

 

-

 

Farm Supply and Feed Store

-

-

A

 

-

See footnote (1)

Gas and Service Stations

-

-

-

 

-

 

Grocery Stores

-

-

-

 

-

 

Hotel and Motel

-

-

-

 

-

 

Hotel and Motel – Extended Stay

-

-

-

 

-

 

Duck, Hunting, and Fishing Clubs

U

U

U

 

U

44-4.100

Medical Offices and Clinics

-

-

-

 

-

 

Nursery, Retail

-

-

A

 

-

See footnote (1)

Offices, Professional

-

-

-

 

-

 

Personal Services

-

-

-

 

-

 

Public/Mini Storage

-

-

-

 

-

 

Recreational Vehicle Parks

U

-

U

 

-

 

Restaurant

-

-

-

 

-

 

Retail, General

-

-

-

 

-

 

Retail, Large Projects

-

-

-

 

-

 

Tasting Rooms

-

-

-

 

-

 

Vehicle Repair, Service and Maintenance

-

-

-

 

-

 

Vehicle Sales and Rental

-

-

-

 

-

 

Community and Recreational Uses

Boat Ramps and Landings

U

U

-

 

U

 

Campground

M

M

U

 

M

 

Cemeteries

-

-

-

 

-

 

Child Care Center

-

-

-

 

-

 

Clubs, Lodges, and Private Meeting Halls

-

-

-

 

-

 

Community Centers

-

-

-

 

-

 

Community Colleges and Universities

-

-

-

 

-

 

Correctional Institutions and Facilities

-

-

-

 

-

 

Cultural Institutions and Museums

-

-

-

 

-

 

Emergency Shelters

-

-

-

 

-

 

Family Day Care, Small

-

-

P

 

-

44-2.60.20(b)

Family Day Care, Large

-

-

-

 

-

 

Golf Courses and Country Clubs

-

-

-

 

-

 

Group Day Care Center

-

-

-

 

-

 

Hospitals

-

-

-

 

-

 

Marinas

-

-

-

 

-

 

Off-Highway Vehicle Recreation Area

-

-

-

 

-

 

Offices, Governmental

-

-

-

 

-

 

Parks and Recreational Facilities, Public

M

M

M

 

M

 

Public Safety Facilities

-

-

P

 

P

 

Recreational Facilities, Private

M

U

P

 

-

 

Religious Facilities and Institutions

-

-

-

 

-

 

Residential Care Facility

-

-

-

 

-

 

Schools, Public and Private

-

-

-

 

-

 

Trail Head Parking or Staging Area

M

P

-

 

M

 

Residential Uses

Agricultural Worker Housing Center

-

-

-

 

-

 

Agricultural Worker Housing Unit

-

-

P

 

-

44-2.60.20(b)

Caretaker Quarters

M

-

M

 

M

44-4.140

Duplex Home

-

-

-

 

-

 

Live/Work Unit

-

-

-

 

-

 

Manufactured or Mobile Home

-

-

P

 

-

44-4.70; 44-2.60.20(b)

Mobile Home (Temporary)

-

-

T

 

-

44-4.80

Mobile Home Park

-

-

-

 

-

 

Multiple Family Dwelling

-

-

-

 

-

 

Residential Care Homes, Large

-

-

-

 

-

 

Residential Care Homes, Small

-

-

P

 

-

44-4.30; 44-2.60.20(b)

Accessory Dwelling

-

-

A

 

-

44-4.10; 44-2.60.20(b)

Single-Family Home

-

-

P

 

-

44-2.60.20(b)

Industrial Uses

Manufacturing, General

-

-

-

 

-

 

Manufacturing, Heavy

-

-

-

 

-

 

Manufacturing, Light

-

-

-

 

-

 

Research and Development

-

-

-

 

-

 

Warehousing, Wholesaling, and Distribution

-

-

-

 

-

 

Transportation, Communication, and Utility Uses

Airport-Related Uses

-

-

-

 

-

 

Airports for Commercial Farm Services

-

-

-

 

-

 

Solid Waste Disposal Site

-

-

-

 

-

 

Composting Facilities and Soil Amendment Facilities

-

-

M

 

-

 

Sewage Disposal Site

-

-

-

 

-

 

Freight and Truck Terminals and Yards

-

-

-

 

-

 

Recycling Collection or Processing Facility, Large

-

-

-

 

-

 

Recycling Collection or Processing Facility, Small

-

-

-

 

-

 

Reverse Vending Machine

-

-

-

 

-

 

Telecommunications Facilities

U

U

U

 

U

 

Utilities, Major

U

U

-

 

U

 

Utilities, Minor

P

P

P

 

P

 

(1) These uses in the Forest Residential Zoning District are limited to the land so designated along Fouts Spring Road east of the federally owned land (the easterly half of Section 35 T18N R7W) of the Mendocino National Forest.

(Ord. No. 765 § 2 (Exh. A) (part); Ord. No. 788 § 9; Ord. No. 796, § 8; Ord. No. 827, § 5; Ord. No. 832, §§ 6, 7, 9.)