Last Updated: 03/12/2019

Zoning Letter of Determination (ZAD)

A Letter of Determination (LOD) is a written response to a request regarding the classification of uses and the interpretation and applicability of the provisions of the Planning Code. An LOD may include a determination about whether a specific use is appropriate in a certain zoning district, or whether a certain use may retain its legal nonconforming status.

In comparison to the Zoning Verification Letter, LOD’s are typically more complex and require further research on the part of the Planning Department.

For questions, you can call 415.558.6377, email or visit the Planning Information Center (PIC) at 1660 Mission Street, First Floor, San Francisco, where planners are available to assist you.

Apply for a Letter of Determination (ZAD)

Requests for a Letter of Determination can be submitted in writing or online. Submit in writing using your company letterhead addressed and mailed to:

Office of the Zoning Administrator
1650 Mission Street, Suite 400
San Francisco, CA 94103

If you submit in writing, please outline your request or question and include the Property Address and Block & Lot if available and include or attach any additional information that may provide aid in analysis of the subject property. These items may include Building Permit records, copies of leases if applicable, and various other documents that provide further insight into the question being posed. It takes 6-8 weeks (or more) to process this type of request depending on the workload of the assigned Planner.

Español: Si desea ayuda sobre cómo llenar esta solicitud en español, por favor llame al 415.575.9010. Tenga en cuenta que el Departamento de Planificación requerirá al menos un día hábil para responder.

中文: 如果您希望獲得使用中文填寫這份申請表的幫助,請致電415.575.9010。請注意,規劃部門需要至 少一個工作日來回應。

Tagalog: Kung gusto mo ng tulong sa pagkumpleto ng application na ito sa Filipino, paki tawagan ang 415.575.9010. Paki tandaan na mangangailangan ang Planning Department ng hindi kukulangin sa isang araw na pantrabaho para makasagot.