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RS-6 Single-Family Residential District Overview

Jurisdiction: ConcordCode Version: February 10, 2026

The RS-6 Residential Single-Family District in the City of Concord is designed to accommodate single-family homes at a density of 2.5 to 10 units per net acre, with a specific minimum lot size requirement of 6,000 square feet. Permitted uses focus primarily on single-family residential development, and development standards are strictly regulated to maintain neighborhood character, with detailed setback, lot coverage, and building height requirements.

Purpose and Applicability

The RS Residential Single-Family (RS) district is established to provide for single-family residential uses in neighborhoods within the City of Concord [Section 18.30.010]. The "RS-6" designation specifically indicates a single-family residential district with a minimum lot size of 6,000 square feet [Section 18.15.020, Table 18.15.020]. This district implements the Low Density Residential (LDR) land use designation of the general plan [Section 18.30.010].

Allowed Uses and Permit Requirements

Within the RS-6 district, several residential and accessory uses are permitted. Uses are categorized by the type of permit required: Zoning Clearance (ZC), Administrative Permit (AP), Minor Use Permit (MP), or Use Permit (UP) [Section 18.30.020, Table 18.30.020].

Land Use Classification Permit Required (RS-6) Additional Requirements
Bed and Breakfast Inn UP
Single-Family, Detached ZC
Single-Family, Detached – Small Lot Subdivision UP
Single-Family, Attached UP Chapter 18.152 CDC, Objective Design Standards
Family Day Care Home (14 or fewer children) ZC
Home-Based Business ZC, AP CDC 18.200.100
Residential Care Facility, Small ZC
Residential Care Facility, Large UP
Residential Facility for Seniors, Assisted Living UP

Development Standards

Development in the RS-6 district must comply with specific standards related to lot dimensions, coverage, and setbacks [Section 18.30.030, Table 18.30.030].

Standard RS-6 Requirement
Density (du/net acre) 0 – 10 (minimum/maximum)
Minimum Lot Area 6,000 square feet (residential)
Minimum Lot Width 60 feet (single-family)
Minimum Lot Depth 85 feet (single-family)
Maximum Lot Coverage 35% (single-family)
Maximum Building Height 30 feet

Setback Requirements

Minimum setback requirements in the RS-6 district are as follows [Section 18.30.030, Table 18.30.030]:

Setback Type RS-6 Minimum
Front 20 feet
Interior Side 5, 10 feet
Aggregate 15 feet
Corner Side 10 feet
Rear 15 feet

Key Restrictions and Provisions

  • Lot Coverage: For nonresidential development, lot coverage is established by the applicable permit or, if not regulated by a permit, by the standards of the abutting district [Section 18.30.030].
  • Setbacks: Setbacks are generally measured from the property line or back of sidewalk (whichever is less) to the face of the building or structure [Section 18.30.030].
  • Design Compatibility: Residential projects in the RS-6 district that do not utilize objective design standards may be subject to additional design and site review processes [Section 18.415.020].

Sections Cited

  • Section 18.15.020 (Zoning map and districts)
  • Section 18.30.010 (Purpose)
  • 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 18.415.020 (Applicability)

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RS-6 Single-Family Residential District Overview | Concord Zoning Guide