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Zoning Standards for RS-10 Residential Districts in Concord

Jurisdiction: ConcordCode Version: February 10, 2026

In the RS-10 Single-Family Residential district within the City of Concord, the maximum permitted lot coverage is 30 percent for single-family residences. There is no specified Floor Area Ratio (FAR) limit provided in the development standards table for the RS-10 district for residential development; instead, development is governed by lot coverage and setback requirements.

Development Standards for RS-10 Districts

The City of Concord applies specific development standards to the RS-10 Single-Family Residential district. These standards ensure that residential development maintains the character of the district while providing for orderly growth.

Standard RS-10 Requirement
Minimum Lot Area 10,000 square feet
Minimum Lot Width 100 feet
Minimum Lot Depth 85 feet
Maximum Lot Coverage 30 percent

Setback Requirements

For single-family residences in the RS-10 district, the following minimum setbacks apply:

Setback Location Minimum Distance
Front 20 feet
Interior Side 10 feet
Aggregate Side 15 feet
Corner Side 15 feet
Rear 25 feet

Note: The interior side setback is designated as 10 feet for the RS-10 district [Section 18.30.030].

Interpretation of Standards

The City of Concord maintains that lot coverage limits apply to individual, subdivided parcels [Section 18.30.030]. For nonresidential uses that may be permitted in an RS district, lot coverage and building height are typically established through the permit process, ensuring they remain compatible with the surrounding residential character [Section 18.30.030].

When calculations for these standards result in fractions, the Concord Development Code requires that fractions of one-half or greater be rounded up to the next whole number, while fractions of less than one-half are rounded down [Section 18.10.050].

Sections Cited

  • Section 18.10.050: Rules (Fractions)
  • Section 18.30.030: Table 18.30.030 – RR and RS districts – Development standards

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