RR-40 Rural Residential Zoning District Overview
The RR-40 Rural Residential district is designated for low-density, single-family residential development with a maximum density of 2.5 dwelling units per net acre and a minimum lot size of 40,000 square feet. This district is consistent with the rural residential land use designation of the Concord general plan and is intended to preserve and enhance the quality of residential neighborhoods.
Permitted Uses in the RR-40 Rural Residential District
The RR-40 district is intended for single-family residential purposes. Primary permitted land uses and their associated permit requirements within the RR-40 district include:
| Land Use Classification | Permit Required |
|---|---|
| Single-Family, Detached | Zoning Clearance (ZC) |
| Bed and Breakfast Inn | Use Permit (UP) |
| Residential Care Facility, Small | Zoning Clearance (ZC) |
| Residential Care Facility, Large | Administrative Permit (AP) |
| Crop Production, Orchard, Vineyard | Zoning Clearance (ZC) |
| Livestock, Grazing | Zoning Clearance (ZC) |
| Community Garden | Administrative Permit (AP) |
| Companion Animal, Horses, Fowl | Administrative Permit (AP) |
Development Standards for the RR-40 District
Development in the RR-40 district must comply with specific dimensional standards as established in the Concord Development Code.
| Standard | RR-40 Requirement |
|---|---|
| Density (minimum/maximum) | 0 – 2.5 dwelling units per net acre |
| Minimum Lot Area (Single-Family) | 40,000 square feet |
| Minimum Lot Width (Single-Family) | 150 feet |
| Minimum Lot Depth (Single-Family) | 100 feet |
| Maximum Building Height | 30 feet |
| Minimum Front Setback | 30 feet |
| Minimum Interior Side Setback | 10 feet |
| Minimum Aggregate Side Setback | 50 feet |
| Minimum Corner Side Setback | 25 feet |
| Minimum Rear Setback | 50 feet |
Note: Lot coverage for nonresidential uses in the RR-40 district is established by the specific permit, or by the regulations of the abutting district if no permit is required.
Key Restrictions and Additional Requirements
- Setbacks and Projections: Structures generally must be set back at least 45 feet from the centerline of any street, though averages of existing improved lots in the same block may apply if the requirement would be less than 30 feet in the RR-40 district [Section 18.30.030].
- Fencing: Fences and walls in the RR-40 district shall not exceed a maximum height of six feet, with specific height limitations for fences within front setbacks and sight visibility triangles [Section 18.150.040].
- Accessory Structures: Accessory structures must be incidental to the primary use and must comply with height and setback requirements [Section 18.200.030].
- Performance Standards: Uses in the RR-40 district must not create dangerous, hazardous, or injurious conditions, including excessive smoke, dust, odor, or noise, consistent with general performance standards [Section 18.150.130].
Sections Cited
- Section 18.15.020: Zoning map and districts
- Section 18.30.010: Purpose (Residential Districts)
- Section 18.30.020: Table 18.30.020 – Residential districts – Allowed uses and permit requirements
- Section 18.30.030: Table 18.30.030 – RR and RS districts – Development standards
- Section 18.150.040: Fences and walls
- Section 18.150.130: Performance standards
- Section 18.200.030: Accessory structures