Rural Residential (RR-20) Zoning District Overview in Concord
The RR-20 Rural Residential zoning district in Concord is designated for rural single-family development with a maximum density of 2.5 dwelling units per net acre and a minimum lot size of 20,000 square feet. This district serves to implement the Rural Residential land use designation of the Concord general plan, accommodating rural residential uses while protecting environmental resources and ridgelines.
Permitted Uses and Permit Requirements
Land uses within the RR-20 district are subject to specific permit requirements as outlined in the Concord Development Code.
| Land Use Classification | Permit Required | Additional Requirements |
|---|---|---|
| Single-Family, Detached | ZC | - |
| Bed and Breakfast Inn | UP | - |
| Community Garden | AP | - |
| Companion Animal, Horses, Fowl | AP | See Section 6.10.040 |
| Crop Production, Orchard, Vineyard | ZC | - |
| Livestock, Grazing | ZC | - |
ZC = Permitted Use, Zoning Clearance; AP = Administrative Permit Required; UP = Use Permit Required.
Development Standards for RR-20 District
The following development standards apply to the RR-20 district in Concord to ensure physical development aligns with the character of rural residential neighborhoods.
| Standard | Requirement for RR-20 |
|---|---|
| Density (minimum/maximum) | 0 – 2.5 du/net acre |
| Minimum Lot Area | 20,000 square feet |
| Minimum Lot Width | 100 feet |
| Minimum Lot Depth | 100 feet |
| Maximum Building Height (Single-Family) | 30 feet |
| Maximum Lot Coverage (Single-Family) | 20 percent |
Setback Requirements (Minimums)
For single-family residences in the RR-20 district, the following minimum setbacks apply:
| Setback Type | Minimum Distance |
|---|---|
| Front | 30 feet |
| Interior Side | 10 feet |
| Aggregate Side | 50 feet |
| Corner Side | 25 feet |
| Rear | 50 feet |
Note: In no case shall any structure be erected closer than 45 feet from the centerline of any street [Section 18.30.030].
Key Restrictions and Provisions
- Performance Standards: Land or buildings in the RR-20 district must not be used in a manner that creates dangerous, hazardous, or injurious conditions, including excessive smoke, dust, odor, noise, or glare [Section 18.150.130].
- Fences and Walls: In residential districts, fences and walls must not exceed six feet in height, except where a minor exception is granted for increased height in side or rear yard setbacks, or for fencing that meets primary structure setbacks [Section 18.150.040].
- Outdoor Storage: Outdoor storage in the RR-20 district is generally subject to restrictions and must be incidental to a permitted use. Storage in the OS, PR, RLC, or WRC districts may be permitted if associated with an agricultural use and located outside of the required setback [Section 18.150.120].
- Nonconforming Uses: Existing uses that were lawful before the adoption of the Concord Development Code but are now nonconforming may continue, provided they are not enlarged, expanded, or intensified [Section 18.530.030].
Sections Cited
- Section 6.10.040
- Section 18.30.010
- Section 18.30.030
- Section 18.150.040
- Section 18.150.120
- Section 18.150.130
- Section 18.530.030