146-148 12th Ave, San Francisco, CA 94118

The property at 146-148 12th Avenue is a two-unit, two-story multi-family residential building constructed in 1902, located in the Lake-The Presidio neighborhood. The building underwent significant renovations in 2011, when approximately $60,000 worth of work was completed, including bathroom and kitchen remodels in both units, the addition of a new bathroom on each floor, construction of a new rear deck, and partial foundation replacement.

This renovation period generated a building complaint in February 2012 regarding work being performed beyond the scope of the permit, with reports of excessive construction hours and neighborhood disruption. Prior to the 2011 renovations, there were several failed attempts to modify the building's structure, including cancelled permits for horizontal and vertical additions in 2004, and withdrawn permits in 2002 for both demolition and construction of a four-story building.

The 2011 improvements included comprehensive updates to both units, such as new furnaces, plumbing for four bathrooms, two kitchens, laundry facilities, and extensive electrical work including new wiring and subpanels. More recent maintenance records show attention to tree maintenance concerns (2023) and periodic issues with driveway blocking that have resulted in multiple citations throughout 2022-2024. The property also experienced sewer-related issues in early 2021, with reports of odor and backup problems.