841-843 Diamond St, San Francisco, CA 94114

The property at 841-843 Diamond Street is a two-unit, two-story multi-family residential building located in Noe Valley, constructed in 1900 and currently owned by the Mae Jean Choy Revocable Trust. The building has undergone several significant renovations and faced some regulatory scrutiny over the years. The most substantial recent work was completed in 2008-2009, when the property underwent a conversion of a storage room to a recreation room, including the addition of a half-bathroom and electrical work, prompted by a building violation.

Earlier improvements include a 2017 kitchen and bathroom remodel ($30,000) and an attempted 2019 rear stair repair (which was ultimately cancelled). The building's maintenance history shows attention to infrastructure, including a 2008 water heater relocation project and plumbing and electrical upgrades associated with the recreation room conversion. The property has experienced some resident-impacting issues in recent years, most notably a sidewalk defect reported in July 2023 that remains unresolved, which could pose safety concerns.

There was also a cluster of noise-related complaints during 2021, with reports of excessive noise and amplified sound, though these were subsequently closed as informational reports. Historical records show there were building violations and complaints related to unauthorized construction in 2008, which were addressed through the permit process, and a 2009 complaint about a possible illegal basement unit. The building's earlier history includes various permit activities from the 1980s and 1990s, though these records are less detailed.