Industrial Mixed-Use (IMX) Development Standards in Concord
In the Industrial Mixed-Use (IMX) district, the maximum floor area ratio (FAR) is 1.0, and the maximum lot coverage is 75 percent for nonresidential development. Residential projects in the IMX district must adhere to specific lot coverage limits based on whether the housing is attached or detached, as detailed in the development standards for the RM and RH districts.
IMX Zoning District Overview
The Industrial Mixed-Use (IMX) district in the City of Concord is intended to accommodate a mix of light industrial uses, offices, and live/work facilities. This district permits light industrial activities such as research and development, warehouses, and artists' studios, as well as ancillary retail, service, and restaurant activities that serve employees [Section 18.50.010].
Density and Intensity Standards
The IMX district operates with a maximum floor area ratio (FAR) of 1.0 for industrial and mixed-use applications [Section 18.50.010]. Development must comply with the following basic dimensional requirements:
| Standard | IMX District Requirement |
|---|---|
| Maximum Floor Area Ratio (FAR) | 1.0 |
| Minimum Lot Area | 10,000 square feet |
| Minimum Lot Width (Interior/Corner) | 100 feet / 110 feet |
| Minimum Lot Depth | 100 feet |
| Maximum Building Height | 50 feet |
Lot Coverage Standards
Maximum lot coverage standards for the Industrial Mixed-Use (IMX) district vary by project type. For nonresidential development, the maximum lot coverage is 75 percent [Table 18.50.030].
For residential development within the IMX district, lot coverage must comply with the standards applicable to residential districts as specified in the development code. The following table summarizes the maximum lot coverage for residential components:
| Residential Type | Maximum Lot Coverage |
|---|---|
| Detached Residential | 70 percent |
| Attached Residential | 85 percent |
Note: Residential lot coverage standards apply to RM and RH designated zones which may apply to residential components within the IMX district [Section 18.30.040; Table 18.185.060(C)].
Additional Development Considerations
- Setbacks: Front setbacks in the IMX district are a minimum of 20 feet, and interior side setbacks are a minimum of 10 feet [Section 18.50.030].
- Outdoor Activities: Uses that require outdoor facilities, storage, or activities in the IMX district may only be allowed if a use permit is reviewed and approved [Section 18.50.010].
- Transitional Requirements: When development in the IMX district abuts a residential district, additional setback and screening requirements apply to ensure compatibility [Section 18.150.180].
Sections Cited
- Section 18.30.040 (Table 18.30.040 – RL, RM, and RH districts – Development standards)
- Section 18.50.010 (Purpose)
- Section 18.50.030 (Table 18.50.030 – Business park and industrial districts – Development standards)
- Section 18.150.180 (Transitional requirements)
- Section 18.185.060 (Affordable housing incentive program)