Pre-Reviewed ADU Plans Program

The City of Cotati is pleased to announce the launch of its Pre-Reviewed ADU Plans Program! This program allows designers to submit ADU plans for pre-approval for compliance with the CA Building Code, and property owners to utilize these plans to reduce plan check timelines and construction costs. The program helps the City meet the goal of creating diverse housing options throughout Cotati by encouraging ADU construction.

For Designers:

Submit a completed Pre-Approved ADU Plans Checklist with a Building Permit to add your ADU plans to the program. Plan check fees will apply, and an initial deposit will be needed to begin the plan check.

Please note, Cotati is part of a countywide collaborative of multiple jurisdictions. Submitting to one jurisdiction for plan review may allow the plan set to be utilized in multiple Sonoma County jurisdictions. Inquire with Community Development staff for more details on how to best implement this option.   

For Property Owners:

The following list of ADU plans have been pre-reviewed by the City and can be used by contacting the representative listed next to each plan. Each design firm will have their own fees associated with the use of their ADU plans; however, use of these plans should result in a reduced plan check fee. Site specific engineering and soils analysis will likely be required to supplement the information provided with a pre-reviewed ADU plan set. As new plans are submitted to the program, they will be added to the list.

Cotati Pre-Reviewed ADU Plans

These ADU plans between 150-499 square feet are exempt from school and impact fees:

These ADU plans between 500-749 square feet are subject to school fees but are exempt from impact fees:

These ADU plans between 750-1200 square feet are subject to both school and impact fees: