525 Masonic Ave, San Francisco, CA 94117

The two-story, four-unit multi-family residential building at 525 Masonic Ave in Lone Mountain, owned by Wayne Fong Living Trust, was constructed in 1923 and has undergone several significant maintenance and upgrade projects over its lifetime. Most recently, a house trap replacement was permitted in January 2025, indicating ongoing infrastructure maintenance.

The building received a substantial electrical upgrade in February 2010, including a new 5-meter system with a 200A service. Previous major improvements include a reroofing project in 2005 ($3,500) and significant stairway wood replacement work in the same year, which followed multiple building violations related to safety concerns that were all abated by June 2005. The property has experienced several maintenance issues over its history, including a notable complaint in October 2009 regarding general dilapidation, which mentioned problems such as deteriorated weather protection, broken windows, paint issues, and pest infestation, though these were ultimately resolved by April 2011.

While there was a false fire alarm recorded, there have been no documented civilian injuries from fire incidents. Recent activity around the property includes several 311 calls between 2022 and 2024, primarily related to street and sidewalk maintenance issues, with the most recent being concerns about an overgrown tree and reported graffiti in September 2024. The building's maintenance history shows regular attention to structural and safety issues, though some concerns have required multiple interventions to resolve completely.