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Zoning Standards for RS-12 Single-Family Residential District in Concord

Jurisdiction: ConcordCode Version: February 10, 2026

The RS-12 Single-Family Residential district in Concord requires a minimum lot area of 12,000 square feet and a minimum lot width of 100 feet. These standards apply to all single-family residential development within the RS-12 district to ensure neighborhood compatibility and consistent density.

District Purpose

The RS (Residential Single-Family) zoning district is intended to provide for single-family residential neighborhoods with densities ranging from two and one-half to 10 units per net acre [Section 18.30.010]. The RS-12 designation is a specific subset of the RS district, which indicates a minimum lot size of 12,000 square feet [Section 18.15.020, Table 18.15.020].

Development Standards for RS-12

The following development standards are required for single-family residential properties located within the RS-12 zoning district, as specified in Table 18.30.030.

Standard RS-12 Requirement
Minimum Lot Area 12,000 square feet
Minimum Lot Width 100 feet
Minimum Lot Depth 85 feet
Maximum Lot Coverage 25 percent
Maximum Building Height 30 feet

Setback Requirements

Minimum setback requirements for single-family residences in the RS-12 district are established to maintain neighborhood character and provide adequate separation between properties [Section 18.30.030].

Setback Type RS-12 Minimum Setback
Front 20 feet
Interior Side 10 feet
Aggregate Side 20 feet
Corner Side 15 feet
Rear 25 feet

Note: All setbacks are measured from the property line or back of sidewalk (whichever is less) to the face of the building or structure [Section 18.30.030, Table 18.30.030].

General Requirements and Exceptions

  • Lot Coverage: The maximum lot coverage for RS-12 single-family residential properties is 25 percent [Section 18.30.030, Table 18.30.030].
  • Building Height: The maximum building height for single-family residences in the RS-12 district is 30 feet [Section 18.30.030, Table 18.30.030].
  • Exclusions: All public or private rights-of-way, easements, or land offered for dedication for road or access purposes are excluded from the gross lot area and are not included in the minimum net lot area or lot coverage calculations [Section 18.150.030].

Sections Cited

  • Section 18.15.020: Zoning map and districts
  • Section 18.30.010: Purpose (Residential Districts)
  • Section 18.30.030: Table 18.30.030 – RR and RS districts – Development standards
  • Section 18.150.030: Exclusion of rights-of-way

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