Guidelines
Last Updated: 05/02/2025

Standards and Recommendations for Window Replacement

Publication update: April 2025

Windows are an integral part of the design and character of most buildings, and choosing appropriate replacement windows is frequently a critical aspect of any rehabilitation project. Windows have a variety of different window shapes, muntin profiles, methods of operation and configurations; therefore, minor changes may alter the appearance of a building.

To assist with your window replacement project, this document includes information on:

  • Historic Designations in San Francisco
  • Window Components
  • Window Replacement for "Category A"
  • Frequently Asked Questions – Repair & Replacement of Historic Windows

You are encouraged to review the step-by-step window replacement guide or contact us with any questions before you commit to any purchase of materials.

Note: a building permit is required for all types of window replacement (despite the location on a building) including enlarging existing windows or adding new windows openings.


For questions, you can call the Planning counter at 628.652.7300 or email pic@sfgov.org where planners are able to assist you.

Español: Para información en Español llamar al 628.652.7550. Tenga en cuenta que el Departamento de Planificación necesitará al menos un día hábil para responder.

中文: 如果您需要中文的帮助, 请致电628.652.7550。请注意, 计划部门至少需要一个工作日才能做出回应。

Tagalog: Para sa impormasyon sa Tagalog tumawag sa 628.652.7550. Paki tandaan na mangangailangan ang Planning Department ng hindi kukulangin sa isang araw na pantrabaho para makasagot.