ADUs in Historic Districts

If your property is located within a historic district, then you will need to apply for and receive a Certificate of Appropriateness (COA) prior to permitting. Find out if your property is historic. 

To receive a COA, you must submit documentation to the City’s Office of Historic Preservation (OHP).

• Submitted plans must be consistent with the approved designs for historic districts.
• Plans that are greatly modified or customized may require additional approvals from the Historic and Design Review Commission.

Apply for a COA

Please submit an application and the required documentation to the OHP Portal:
Apply

Minimum documentation required includes:

• Floor plan(s), roof plan and building elevations of each side of the proposed structure (if modified from approved plans).
• Measured and to-scale site plan. Must show building setbacks, proposed driveways and parking areas, fencing and building footprints.
• Specifications of proposed windows and exterior doors.
• Specifications of proposed roofing material, details, color and accessories.
• Specifications of proposed siding material.
• Current, color photos of the existing site.

For more information, contact the Office of Historic Preservation.