3536-3540 23rd St, San Francisco, CA 94110

The 6-unit, 3-story multi-family residential building at 3536-3540 23rd Street in Noe Valley, owned by Margaret Marie Huffman, was constructed in 1909 and has undergone several significant safety improvements over the past two decades. Most notably, the building completed a mandatory soft-story retrofit in 2017 under SFEB Chapter 4D to enhance seismic safety, for which a Certificate of Final Completion (CFC) has been issued. Recent safety upgrades include the installation of a new fire alarm system in 2023, featuring updated horns, panel, wireless communicator, pull stations, smokes, and sounders inside units, with a previous voluntary fire alarm system upgrade permit from January 2023 having been suspended.

The building's electrical system has also seen improvements, including a 225-amp service upgrade in 2021. Historical maintenance includes reroofing work completed in 2002 and stair repairs in 1996. The property has maintained compliance with housing regulations, with only one routine common area inspection recorded in 2008 (which was promptly addressed).

While there have been multiple 311 calls since 2020, these primarily relate to street cleaning, parking issues, and urban maintenance outside the building (such as Christmas tree removal and garbage pickup), rather than building-specific concerns. A tenant buyout occurred in November 2018, involving one tenant at an amount of $85,500. The building's recent and ongoing improvements, particularly in safety systems and structural resilience, indicate proactive management of the property’s infrastructure.