470 Warren Dr, San Francisco, CA 94131

The 20-unit, four-story multi-family residential building at 470 Warren Drive in Forest Knolls, built in 1963, has undergone several significant improvements and faced various maintenance challenges over its history. Most notably, the building completed a mandatory soft-story retrofit in September 2018, which included the installation of new moment frames and plywood shearwalls, bringing the building up to current seismic safety standards. Other major improvements include a comprehensive window replacement project in 2012 (installing 66 vinyl windows and 3 patio doors), multiple roofing projects (2010 and 2013), and termite repairs completed in 2000.

The building has experienced periodic maintenance issues, including a water pipe leak repair in 2016 and some significant building violations in 2024 related to fire safety requirements, including combustible storage issues and ceiling repairs that were subsequently abated in May 2024. The property has a documented history of fire safety concerns, with multiple violations and incidents recorded between 2006 and 2023, including issues with fire alarms, extinguishers, and hazardous materials, though most were promptly corrected. The building has experienced several false fire alarm activations and smoke detector malfunctions, with only one recorded genuine cooking-related fire incident.

Parking enforcement has been a recurring issue in recent years, with multiple citations issued for vehicles blocking driveways between 2021 and 2024. The most recent building inspection and complaint activity suggest ongoing attention to fire safety compliance is necessary, with violations noted in November 2023 regarding sleeping area requirements and the need for permit compliance. While the building's major systems have been upgraded to meet current codes, the presence of recent violations and historical maintenance issues suggests continued monitoring of building conditions is warranted.