180 Joost Ave, San Francisco, CA 94131

180 Joost Avenue is a two-unit residential building located in San Francisco's Sunnyside neighborhood, constructed in 1910 and currently owned by Raymond C K Chan. The two-story structure, classified as Flats & Duplex, has undergone several significant improvements in recent years, most notably a comprehensive solar upgrade program in 2023 that included multiple installations of photovoltaic systems ranging from 3.5 to 4.4 kW, along with battery storage systems. Prior to this, the building received attention for basic maintenance with a reroofing project in November 2022 costing over $18,000.

Historical records show a structural upgrade to an attached garage was attempted in 1992, though this permit eventually expired. The property has experienced recurring parking-related issues in 2024, with multiple reports of driveway blockages resulting in citations, particularly during the period from October to December 2024. There were also reports of abandoned vehicles near the property in October 2024.

Two infrastructure-related issues were documented in October 2024 regarding missing or downed parking signs, which were subsequently resolved. The only maintenance issue recorded in the building's history was a brief complaint about weeds and grass in June 2008, which was promptly corrected by late July of the same year. The property has no documented tenant buyouts or displacement history at this address, though records show a $9,000 buyout involving two tenants at a different address (75 Mangels Avenue) in July 2015.