543 Masonic Ave, San Francisco, CA 94117

The 4-unit, 2-story multi-family residential building at 543 Masonic Ave in the Lone Mountain neighborhood, owned by Yeh Manching Trust, has undergone several significant improvements and faced various compliance issues since its construction in 1924. Most recently, in 2019, the building received a new roof at a cost of $8,500. Major renovations were completed in 2000 when a basement storage room was converted into living space (costing $80,000), and in 1996 when both the bathroom and kitchen were remodeled and ceiling plaster repairs were performed.

The building's maintenance history includes addressing several serious safety violations identified in 2003, including missing smoke detectors, fire extinguishers, door closers, and utility shutoff tools, all of which were resolved by June 2003. A subsequent ceiling damage issue was reported and resolved in 2009. In March 2001, a complaint was filed regarding foundation work at the property affecting a neighboring backyard, though this was resolved by August 2001.

The most recent activity related to the property is a construction noise complaint filed in September 2023, which was processed through the Department of Building Inspection. The building's history indicates regular maintenance and responsiveness to safety concerns, with all identified violations being corrected within reasonable timeframes. While the property has experienced various maintenance issues over the years, particularly in the early 2000s, there have been no documented violations or complaints since 2009 until the recent noise complaint in 2023. The property's improvement projects, including the recent reroofing and the significant 2000 renovation, demonstrate ongoing investment in the building's maintenance and upgrades.