1644 Sanchez St, San Francisco, CA 94131

1644 Sanchez Street is a two-story, four-unit multi-family residential building located in Noe Valley, constructed in 1900 and currently owned by Terence Dunne. The property has experienced several significant maintenance issues in recent years, most notably a series of concerning problems with the roof.

In 2024, there were multiple complaints regarding the roof's condition, including reports of shingles flying off, debris posing safety risks to pedestrians, and an active violation filed in July 2024 requiring roof repairs. Despite these problems, the building underwent a reroofing project in March 2024 that included installation of synthetic underlayment and composition shingles at a cost of $36,000. The building's maintenance history shows recurring infrastructure challenges, including a sewage leak and broken drain lines reported in 2006, which were reportedly causing unsanitary conditions.

Between November and December 2008, multiple violations were documented regarding fire safety, security, and general maintenance issues, including a malfunctioning fire escape ladder, improper garbage receptacle placement, and the need for building-wide repairs such as stair maintenance and hot water heater seismic bracing. More recent complaints from late 2024 and early 2025 have focused on construction-related safety concerns, including unsecured metal debris on the roof and falling debris during work operations, though these complaints were subsequently marked as not active. The building's recent history shows a pattern of maintenance challenges requiring attention, particularly regarding roof integrity and safety during construction activities.