1737-1741 Mason St, San Francisco, CA 94133

The three-story, six-unit multi-family residential building at 1737-1741 Mason Street in Russian Hill, constructed in 1911, has undergone significant improvements and renovations in recent years. Most notably, there have been substantial modifications to the third-floor unit (1737 Mason Street) in 2024, including a major interior renovation involving bathroom relocations, kitchen reconfiguration, and the addition of a new roof deck with associated permits costing approximately $56,000. The building's safety systems have received considerable attention, with a complete fire alarm system upgrade in 2024 to comply with San Francisco Fire Code requirements, and the installation of a new fire sprinkler system in 2022 covering 17 heads and egress paths.

Additional improvements include HVAC upgrades with mini-split systems, plumbing updates including tankless water heaters, and electrical system enhancements. The building has a history of addressing safety and maintenance concerns, with all violations from a 2016 routine inspection having been abated by November 2016, including issues related to handrails, fire safety equipment, and lead paint concerns. Recent 311 calls regarding the property have been minimal, with only one documented case in October 2024 related to garbage and debris on the street. There are ongoing discussions about the newly constructed roof deck, with some neighbors expressing concerns about its size and notifications, though the permit was ultimately approved.

The property has maintained regular housing inspections over the years (2003, 2006, and 2016), and all major repair and improvement work has been conducted under proper permits. The building's recent (2023-2024) work has primarily focused on unit 1737's modernization and safety system upgrades, with electrical, plumbing, and building permits totaling over $100,000 in improvements. Historical records show previous significant renovations in 2016-2022, including kitchen and bathroom remodels, furnace and water heater replacements, and various safety system upgrades. The property was last inspected for routine violations in 2016, and all identified issues were resolved.