402 W. Birch Ave. Certificate of Appropriateness

Approve a Certificate of Appropriateness to construct a new one bedroom, one bathroom Accessory Dwelling Unit (ADU) above a new garage at 402 W. Birch Ave. (APN 103-11-013), with access from Sitgreaves St. This new structure would be detached from the existing single-family dwelling structure. This property is in the Townsite Historic Design Review Overlay Zone and is a non-contributing property within the Flagstaff Townsite Historic Residential District.

Staff recommends that the Heritage Preservation Commission approve the Certificate of Appropriateness for the proposed plans for a new detached accessory dwelling unit and garage.

1) The Commission can approve with conditions related to the standards and guidelines applicable to the case; or
2) The Commission can request additional information and continue to a date certain.
3) Deny Certificate of Appropriateness and require Certificate of Economic Hardship or submittal of an alternative design that meets all Townsite Overlay Requirements.

The Heritage Preservation Commission reviewed a Certificate of Appropriateness application for this project at the November 19, 2025, meeting. The Commission found and determined that, based on the information provided in the staff report dated November 12, 2025, and at the public hearing, the facts exist as required by Section 10-30.30 of the Zoning Code to justify granting a Certificate of Appropriateness for a portion of the proposed project: adding a partially covered front porch and patio to the existing single-family dwelling structure and fencing modifications. Based upon the findings, the Commission approved a Certificate of Appropriateness by a vote of 5 – 0 for the use and location described above, subject to the submitted plans.

The Commission also voted 5 – 0 to continue discussion of the remainder of the proposed project scope (the construction of a new one bedroom, one bathroom Accessory Dwelling Unit (ADU) above a new garage until the December 17, 2025, Commission meeting and requested the applicant provide modified design drawings demonstrating ADU subservience to the primary structure based on the Commission’s comments during the November 19, 2025 discussion. The modified design drawings, materials board, response letter, and project narrative are attached as well as the application packet and staff report discussed at the November 19, 2025, meeting.