505-509 Oak St, San Francisco, CA 94102

The three-unit residential building at 505-509 Oak Street in Hayes Valley, built in 1900, has undergone significant recent improvements, with the most substantial being a $48,000 foundation and structural upgrade completed in September 2023. This work included replacement of masonry foundation walls adjacent to the garage, installation of a steel moment frame, and repairs to address dry rot issues in the entry stair. The building has seen consistent maintenance and upgrades over the past several years, with major electrical work completed in 2023 involving a 200-amp service lower level build-out, and the relocation of gas and electrical meters in 2019 to improve safety and accessibility.

Previous renovations have included comprehensive unit updates in 2021 ($80,000), seismic strengthening of the garage in 2017, and multiple plumbing and electrical upgrades. The property has a history of addressing safety and compliance issues, with all building violations from 2002 related to security requirements and safety equipment being promptly abated by May 2002. The building underwent a significant renovation approved in 2023, including foundation work and structural improvements, as well as various unit-specific upgrades.

Recent complaints have primarily concerned parking enforcement, with multiple citations issued for driveway blocking between August and December 2024. These parking issues appear to be external to the building's operations. Overall, the building's recent history shows proactive maintenance and upgrading of systems, with particular attention paid to structural integrity, safety systems, and unit modernization. The property has maintained compliance with building codes and regulations, with prompt resolution of any violations or safety concerns.