Permitted Land Uses and Development Standards for CMX: Commercial Mixed-Use District in Concord
The Commercial Mixed-Use (CMX) district in the City of Concord is designed to support an integrated mix of neighborhood commercial uses, including retail and personal services, alongside residential development at densities ranging from 11 to 40 units per net acre. Development within the CMX district is permitted up to a Floor Area Ratio (FAR) of 1.0, and specific uses may require a zoning clearance, administrative permit, or use permit depending on the land use classification.
Purpose of the CMX District
The Commercial Mixed-Use (CMX) district is applied to areas appropriate for an integrated mix of neighborhood commercial uses and offices on lots 10,000 square feet or larger, positioned together with or adjacent to residential uses [Section 18.40.010]. The CMX district is primarily located along portions of Clayton Road, Monument Boulevard, and Willow Pass Road and is consistent with the commercial mixed-use (CMU) land use designation of the Concord general plan [Section 18.40.010].
CMX Development Standards
The following development standards apply to the Commercial Mixed-Use (CMX) district:
| Standard | CMX Requirement |
|---|---|
| Density (du/net acre) | 11 – 40 |
| Floor Area Ratio (FAR) | 1.0 |
| Lot Area (minimum) | 10,000 sq. ft. |
| Lot Width (minimum) | 100 feet |
| Lot Depth (minimum) | 100 feet |
| Building Height (max - Residential/Mixed-Use) | 37 feet |
| Building Height (max - Nonresidential) | 30 feet |
| Front Setback (minimum) | 5 feet |
| Corner Side Setback (minimum) | 10 feet |
| Interior Side/Rear Setback | None required unless adjacent to R district |
Note: Reduced dimensions may be allowed subject to use permit approval [Section 18.40.030].
Land Use Permissions and Permit Requirements
Permissions for uses within the CMX district are determined by the City of Concord’s land use tables. Key permit types include:
- ZC (Zoning Clearance): Permitted use, staff verification.
- AP (Administrative Permit): Staff approval.
- MP (Minor Use Permit): Zoning administrator approval.
- UP (Use Permit): Planning commission approval.
Selected Land Use Permissions for CMX
| Land Use Classification | Permit Required in CMX |
|---|---|
| Adult Day Care Center | ZC |
| Hospital, Veterinary Clinic | ZC |
| Office (Administrative/Processing) | AP, MP |
| Professional Office | AP, MP |
| Retail (General) | ZC |
| Restaurant (Full Service) | AP |
| Nursery, Preschool, Childcare | UP |
For a full listing of uses and corresponding permit requirements, refer to the Land Use Tables for the Office and Commercial Districts in Section 18.40.020.
Additional Requirements for CMX
- Residential Uses on Ground Floor: In the CMX district, residential uses are not allowed on the ground floor [Section 18.40.030].
- Setbacks: The area between the street improvements and the street setback line must be landscaped in compliance with Chapter 18.165 CDC [Section 18.40.030].
- Mixed-Use Projects: Mixed-use projects must meet the definition of a “housing development project” in California Government Code Section 65589.5(h) to qualify for residential and mixed-use height standards; otherwise, they are subject to nonresidential height standards [Section 18.40.030].
- New Tenants: New tenants in existing multi-tenant buildings in the CMX district may be allowed with a zoning clearance when replacing a use in the same or similar use classification [Section 18.25.040].
Sections Cited
- Section 18.25.040 (New Tenants in Existing Buildings)
- Section 18.40.010 (Office and Commercial Districts - Purpose)
- Section 18.40.020 (Office and Commercial Districts - Allowed uses and permit requirements)
- Section 18.40.030 (Office and Commercial Districts - Development standards)