1839 Cabrillo St, San Francisco, CA 94121

The two-unit residential building at 1839 Cabrillo Street in San Francisco's Central Richmond district is a two-story flats and duplex structure built in 1922, currently owned by To Yen & Kam Foon Yee Tam 1. The building has undergone several significant modifications over its lifetime, most notably a vertical extension completed in 1987 that added an additional story to the structure, and a complete reroofing project in 2010 costing $6,500.

There is also a record from 1984 for replacement of a wooden staircase in the rear yard, though this permit ultimately expired without confirmation of completion. The property has experienced various parking-related issues in recent years, with multiple reports of illegal parking and blocked driveways recorded between 2018 and 2023, including two confirmed citations in 2023, though some cases were resolved with officers unable to locate the offending vehicles.

There were two reports of abandoned vehicles near the property in 2018 and 2019, both of which were resolved with the vehicles being gone upon officers' arrival. Some minor maintenance issues were noted, including reports of loose garbage requiring attention in 2012 and 2017, though these were addressed by the appropriate city departments. The building's planning records indicate a historical attempt to add an additional residence to the existing structure, though this appears to be a duplicate entry and does not specify any completed development.