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CMX – Commercial Mixed-Use Zoning District Overview for the City of Concord

Jurisdiction: ConcordCode Version: February 10, 2026

The Commercial Mixed-Use (CMX) district in Concord is intended to facilitate an integrated mix of neighborhood-serving commercial uses and residential development at densities ranging from 11 to 40 dwelling units per net acre. CMX development allows for retail and personal service uses on lots of 10,000 square feet or larger, with building intensity permitted up to a 1.0 Floor Area Ratio (FAR).

Purpose of the CMX District

The CMX – Commercial Mixed-Use district is applied to areas appropriate for an integrated mix of neighborhood commercial uses, including retail and personal services, and offices. This district primarily encompasses portions of Clayton Road, Monument Boulevard, and Willow Pass Road [Section 18.40.010].

CMX Development Standards

The following table summarizes the key development standards for the CMX zoning district as specified in the Concord Development Code.

Standard CMX Requirement
Density (minimum/maximum) 11 – 40 units per net acre
Floor Area Ratio (FAR) (maximum) 1.0
Lot Area (square feet) (minimum) 10,000 sq. ft.
Lot Width (feet) (minimum) 100 feet
Lot Depth (feet) (minimum) 100 feet
Building Height (feet) (maximum) 30 feet (Nonresidential) / 37 feet (Residential/Mixed-Use)
Front Setback (feet) (minimum) 5 feet
Corner Side Setback (feet) (minimum) 10 feet

Note: For specific information regarding setback exceptions, refer to Section 18.150.140 and Section 18.40.030 Table 18.40.030.

Permitted Uses and Permit Requirements

Land uses within the CMX district are subject to specific permit requirements. Per the Concord Development Code:

  • Residential Uses: Multi-family residential projects in CMX may be allowed by right (Zoning Clearance) if they meet objective design standards, or may require design and site review [Section 18.415.020].
  • Commercial/Retail Uses: Many retail and personal service uses in CMX require either a Zoning Clearance (ZC) or an Administrative Permit (AP).
  • Cannabis Uses: Commercial cannabis land uses are prohibited in the CMX district [Section 18.30.020 Table 18.30.020; Section 18.40.020 Table 18.40.020].

Consult the specific use tables in Chapter 18.40 for detailed permit requirements for individual business types.

Key Restrictions and Additional Requirements

  • Ground Floor Residential: Residential uses are not allowed on the ground floor of developments in the CMX district [Section 18.40.030 Table 18.40.030].
  • Architecture and Design: Mixed-use projects in CMX must comply with Objective Design Standards found in Chapter 18.152, unless they are subject to discretionary design and site review [Section 18.415.020].
  • Outdoor Storage: Storage in the CMX district must be located within an enclosed building unless specific provisions under Chapter 18.200 allow for outdoor sales and displays [Section 18.50.010; Section 18.200.160].
  • Transitional Requirements: When CMX properties abut a residential district, additional setbacks and screening requirements may apply to protect the residential use [Section 18.150.180].

Sections Cited

  • Section 18.30.020
  • Section 18.40.010
  • Section 18.40.020
  • Section 18.40.030
  • Section 18.150.140
  • Section 18.150.180
  • Section 18.152.010
  • Section 18.200.160
  • Section 18.415.020

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