3639-3641 17th St, San Francisco, CA 94114

This two-story, three-unit multi-family residential building at 3639-3641 17th Street, owned by Seventh Prime LLC, dates back to 1900 and is located in the Mission Dolores neighborhood. The property has undergone significant improvements over recent years, with major work including the installation of a radiant underfloor heating system, kitchen and bathroom remodels (2017-2019), and comprehensive sprinkler system installation throughout the building (2017-2018).

The building's security and access have been enhanced with the replacement of the vehicular gate and fencing in 2018, while aesthetic improvements included the replacement of rear carriage house siding in 2017. The property has experienced recurring issues with graffiti, particularly in 2023-2024, with multiple cases reported on and around the building, though most were classified as "Not Offensive" or "Not Offensive" and were resolved through proper channels. A medical waste incident involving needles was reported and resolved in March 2023.

Notable historical context includes a 1998 complaint about work without proper permits, which wasn't abated until 2013. The building has undergone several significant modifications as documented in planning records, including a proposed vertical addition and rear facade changes, though many permits have expired and required renewal or revision, such as for plumbing work related to kitchen and bath upgrades. Recent maintenance activities have focused on preserving and upgrading both the front and rear structures, with attention to fire safety through sprinkler system installation and electrical system upgrades.