1519-1523 Mason St, San Francisco, CA 94133

The three-story multi-family residential building at 1519-1523 Mason St in Russian Hill, owned by the Liang Family Trust, has been in operation since 1908 and currently contains three units. The building's maintenance history shows several significant updates, including the replacement of sewer lateral sections in December 2022, installation of aluminum windows in 1990, and reroofing work completed in 1990.

The property has undergone multiple routine housing inspections over the years, with notable violations recorded in 2008 related to handrails, plumbing/electrical issues, fire safety (including fire extinguisher maintenance and egress obstructions), and stair repairs, all of which were abated by April 2008. A 2016 routine inspection also identified concerns regarding stairs and structural maintenance requirements. The building has experienced two fire system-related complaints in recent years, with a sprinkler/standpipe system issue in 2019 that was corrected, and a more recent alarm systems complaint from October 2024 that is still unresolved at this time.

The surrounding area has seen regular municipal activity, particularly in terms of street cleaning and public maintenance, with multiple 311 calls recorded between 2020 and 2024 regarding general cleaning, loose garbage, and occasional issues with toters and encampments. A construction noise complaint from February 2024 was investigated but found to be related to normal cable car operations rather than construction activity. The property appears to be generally maintaining compliance with major safety requirements, though the recent alarm systems complaint and historical fire safety violations suggest ongoing attention to safety systems is necessary.