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Zoning Regulations for the RR-15 Rural Residential District in Concord

Jurisdiction: ConcordCode Version: February 10, 2026

The RR-15 Rural Residential district in Concord is designated for low-density residential development with a minimum lot area of 15,000 square feet. Within the RR-15 district, the maximum lot coverage is 25 percent, while floor area ratio (FAR) is not explicitly capped by a single number for all structures in the same manner as residential density; rather, it is guided by the general development standards and the specific permit conditions for the site.

Development Standards for RR-15 Rural Residential

The RR-15 district is a subset of the Rural Residential (RR) land use category, which supports rural single-family development at densities of up to 2.5 dwelling units per net acre [Section 18.30.010].

Lot and Structure Standards

The following table outlines the foundational development standards for the RR-15 district, as specified in the residential development regulations [Section 18.30.030].

Standard RR-15 Requirement
Minimum Lot Area 15,000 square feet
Minimum Lot Width 100 feet
Minimum Lot Depth 85 feet
Maximum Lot Coverage 25 percent

Floor Area and Height Limits

While the maximum lot coverage for single-family homes in the RR-15 district is set at 25 percent, nonresidential lot coverage in the RR-15 district is established through the specific permit process [Section 18.30.030]. The maximum building height for single-family structures in the RR-15 district is 30 feet [Section 18.30.030]. For nonresidential development, building height is also determined by the specific permit issued for the project [Section 18.30.030].

General Applicability and Interpretation

The RR-15 district is intended to implement the Rural Residential (RR) land use designation of the Concord General Plan [Section 18.30.010]. All development in the RR-15 district must comply with the general development standards and any conditions of approval imposed by a discretionary permit [Section 18.25.020]. If a conflict arises between the development code and a specific plan or development agreement, the standards of the specific plan or agreement shall apply [Section 18.10.030].

Sections Cited

  • Section 18.10.030: Relation to Other Regulations
  • Section 18.25.020: General requirements for development and land use
  • Section 18.30.010: Purpose
  • Section 18.30.030: Table 18.30.030 – RR and RS districts – Development standards

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