509-511 Leavenworth St, San Francisco, CA 94109

The 17-unit, 4-story apartment building at 509-511 Leavenworth Street, constructed in 1921, has experienced several significant events throughout its history, with particular attention needed on more recent developments. The building is currently undergoing a kitchen and bathroom remodel in Apartment #201 as of late 2024, with associated permits for electrical and plumbing work issued in December 2024 and January 2025, respectively. Of particular concern is the building's recent pattern of fire safety violations, including open violations for sleeping area requirements (December 2023) and a past extinguisher service violation (July 2023), along with multiple fire-related complaints in 2024 regarding fire escape conditions, sprinkler systems, and extinguishers, though most have been marked as corrected. The building previously suffered fire damage in 2004-2005, requiring extensive repairs valued at over $300,000 and additional work totaling $270,000, followed by comprehensive electrical system upgrades.

Recent infrastructure improvements include a system replacement and new low-frequency horns installed in 2023 to meet updated fire code requirements. The property has experienced recurring issues with fire safety equipment and systems over the years, with violations noted in 2016, 2019, 2023, and 2024 regarding extinguishers, sprinklers, and alarm systems. There have been multiple 311 calls in late 2024 regarding garbage and debris issues near the property, and a December 2024 complaint about unpermitted remodeling work. Historical records show the building underwent significant electrical system upgrades in 2005, including a major electrical panel installation.

The building's maintenance history includes various repairs and improvements, such as the replacement of house traps and main sewer line work in 2021, and some earlier issues with the fire escape system noted in 2001 which were subsequently addressed. The most pressing recent issues appear to center around fire safety compliance, with multiple open violations and complaints regarding fire escape systems, extinguishers, and sleeping area requirements. The building has a documented history of fire-related incidents, though none have resulted in civilian injuries. While many historical violations and complaints have been resolved, the pattern of recent violations suggests ongoing challenges with maintaining fire safety compliance. The property has undergone various improvement projects over the years, including a recent focus on unit upgrades and system modernizations, which may indicate active management response to building condition issues.