4400 20th St, San Francisco, CA 94114

The three-unit residential building at 4400 20th Street, located in the Eureka Valley/Dolores Heights neighborhood, is a two-story flats and duplex structure built in 1907 and currently owned by Reed Garrett C. The property has seen several significant maintenance and infrastructure updates over the past few decades, most notably in late 2012 when substantial improvements were made including the repair/replacement of dryrot-affected joists, bathroom fixtures, and the installation of a new hot water heater system, with associated electrical work for the commercial laundry facility.

A concerning pattern of sewer-related issues has emerged recently, with two documented sewage back-up incidents in 2023 and 2024 involving vent problems, suggesting a potential ongoing plumbing maintenance concern. The building's maintenance record also shows some structural work attempted in 1999 regarding stair replacement, although one permit expired. A single housing complaint was filed in 2009 regarding peeling paint and sidewalk debris, which was promptly addressed within a week.

Recent activity at the property has been relatively focused on external enforcement matters, including multiple parking enforcement requests and illegal posting violations in 2023-2024. The property has experienced three fire department responses for various reasons between 2021-2023, though none resulted in any incidents or injuries. While most service calls have been resolved promptly, there remains one open pavement defect issue from February 2023 that is still in progress as of the last reporting.