3507-3509 23rd St, San Francisco, CA 94110

The property at 3507-3509 23rd Street in San Francisco's Noe Valley neighborhood is a two-story, three-unit multi-family residential building constructed in 1900. The building underwent extensive renovations in 2014-2015, with a major $495,000 remodeling project that included updating three kitchens, four bathrooms, adding two new bathrooms, expanding unit #3, relocating interior stairs, and installing four skylights.

This renovation was accompanied by significant safety improvements, including the installation of a comprehensive fire sprinkler system throughout the building ($40,000) and a new fire alarm system ($5,800) in early 2015. Additional improvements during this period included the installation of four new dormers, reroofing the building, and updates to the electrical system, with a full electrical upgrade for all units. The building has a history of responding to safety and maintenance requirements, with two routine apartment inspections conducted in 2001 and 2008 revealing various compliance issues that were all properly addressed and abated.

These included repairs to stairs, windows, and fire safety equipment, though none of these violations were active at the time of the property’s recent comprehensive upgrades. The most recent building maintenance records show attention to typical urban issues, with several 311 calls in 2023-2024 primarily related to parking matters, though none indicating building code or safety concerns. The property remains classified as a three-unit building, and recent planning records confirm that no significant additional modifications to the building's roof profile or deck spaces have been proposed or permitted since the 2014-2015 renovations.