439-445 Oak St, San Francisco, CA 94102

This three-story multi-family residential building, located at 439-445 Oak Street in Hayes Valley and owned by Arce Magnus LLC, was constructed in 1911 and contains three units. The property has undergone significant renovations and safety upgrades over the past several years, with the most substantial work occurring between 2018-2021. Major improvements include the conversion of the first-floor garage into a 3-bedroom, 2-bathroom ADU unit, complete foundation replacement, installation of fire sprinkler systems throughout, and various interior updates including bathroom additions.

The building has received comprehensive electrical upgrades, including a complete rewiring, service upgrade to 200 amps, and new individual panels for each unit. Multiple plumbing improvements were also undertaken, including furnace installations and a complete kitchen and bathroom remodel. The building's recent history shows active maintenance and upgrading of essential systems, with no current building violations on record. Past issues primarily related to heating problems in 2008-2009, when multiple notices were issued regarding inadequate heat supply, though these were subsequently resolved.

There was one complaint in 2018 regarding construction work and permit display that was marked as not active. The property has experienced regular street maintenance issues typical of the urban environment, with several recent 311 calls in 2022-2023 primarily related to parking enforcement and sidewalk cleaning. A collapsed sidewalk issue reported in December 2022 remains open as of the last update. The building's permit history shows responsible ownership and compliance with safety regulations, particularly through the installation of modern fire safety systems and comprehensive building upgrades.