502 Liberty St, San Francisco, CA 94114

The two-unit residential building at 502 Liberty Street, owned by the Andrea S Brown Family Trust, is a two-story flats and duplex structure built in 1900, currently located in the Eureka Valley/Dolores Heights neighborhood. The property has undergone several significant improvements over the years, with the most recent being a 4 kW rooftop solar electric system installation completed in 2023 and a gas line extension for meter relocation completed in 2024.

The building underwent major foundational work in the early 2000s, including the installation of six new columns in the basement, and received substantial maintenance updates in 2003 with the installation of new double-glazed windows and a complete reroofing. Historical records indicate multiple permit finalizations were completed in 2015, covering various past work approvals. The property has experienced limited infrastructure issues, with a notable sewage backup incident in 2018 being the most significant maintenance-related complaint on record.

Recent activity shows recurring parking enforcement issues in 2024, with several citations issued for driveway blocking violations. The building's maintenance history demonstrates regular upkeep through various improvements and repairs, with no major safety concerns or significant resident experience issues documented. The property has maintained proper regulatory compliance through appropriate permit acquisitions and inspections for all major work performed.