124 Mason St, San Francisco, CA 94102

The 8-story multi-family residential building at 124 Mason Street, constructed in 1913, is currently owned by 124 Mason St Prpty LLC and contains 31 units. The building has undergone significant recent activity, with multiple unit renovations between 2019-2025, including kitchen and bathroom upgrades, washer/dryer installations, and electrical system improvements. Notable renovations include work in units 804, 102, 401, 602, and 704, with the most recent fire alarm system upgrade scheduled for 2025 to comply with SFFC requirements.

The property has experienced recurring elevator issues, with multiple complaints between 2005-2017, and has faced fire safety challenges in recent months, with multiple violations issued between March-October 2024 related to alarm systems, sleeping area requirements, and sprinkler systems. A concerning pattern of fire code violations has emerged in 2024, with citations issued in March, May, September, and October. The building has documented tenant buyouts in 2018 at 56 Mason Street, each totaling $193,750 for one tenant. The property has undergone various infrastructure improvements, including a 1000-amp electrical service upgrade in 2016, and comprehensive fire alarm system upgrades in 2019 to meet safety standards.

However, there have been persistent maintenance challenges, particularly with the elevator system and fire safety compliance. Recent 311 calls from January 2025 indicate ongoing concerns with garbage, encampments, and graffiti in the vicinity of the building. The building's history includes some significant incidents, such as lead paint contamination complaints in 2015 and multiple elevator entrapments requiring emergency response. While many previous violations have been addressed, the recent surge in fire code violations warrants attention, with multiple citations issued in 2024 for various fire safety concerns, including alarm systems, sprinkler systems, and sleeping area requirements.