501 Diamond St, San Francisco, CA 94114

The two-story, four-unit multi-family residential building at 501 Diamond Street in Noe Valley, owned by Redwood Tr, was constructed in 1958 and has undergone several significant renovations and maintenance work over the years. The property has experienced multiple plumbing issues, with the most recent being a sewage back-up discharge in September 2024, and a notable sewer overflow incident in May 2017. Building improvements include a complete reroofing in 2015 ($11,900), a kitchen remodel in Unit #3 in 2007-2008 ($15,000), and various structural repairs. In 2012, substantial stair repairs were completed, addressing dry rot issues on both front and rear staircases.

Multiple building violations were recorded in 2001-2011, primarily related to fire safety concerns, stair repairs, and handrail maintenance, all of which were subsequently abated. A significant complaint regarding unpermitted support structure replacements due to termite damage was filed in early 2021, though this was marked as not active. Recent 311 calls from late 2023 through 2024 have primarily related to parking violations, though there have been several utility-related matters including water pressure complaints and irrigation issues. The building underwent substantial electrical upgrades in 2003, including the replacement of the fuse box with a breaker box and installation of various electrical systemsspecific to unit needs.

The property has maintained compliance with housing inspections, with routine inspections conducted in 2011 showing various fire safety concerns that were later addressed. While the building has experienced periodic maintenance issues, particularly regarding its sewer system, the record shows regular upkeep and prompt attention to safety violations when they arise. The most recent fire incidents were minor, involving a malfunctioning alarm system and a lockout situation, neither resulting in injuries. Recent maintenance work has focused on various individual unit improvements and infrastructure upgrades, indicating ongoing investment in the property's upkeep.