249-251 2nd Ave, San Francisco, CA 94118

The two-unit residential building at 249-251 2nd Avenue in San Francisco's Inner Richmond district is a two-story flats and duplex structure built in 1906 and currently owned by the Tam May Yuk Revocable Trust. The property has undergone several significant renovations and maintenance work over the years, most notably in 2007 when substantial safety improvements were made including the rebuilding of rear stairs and landings to provide a second exit, infilling work under the second-floor rear porch, and relocating washer and dryer facilities, with this work costing approximately $20,000.

That same year, additional safety measures were implemented with the installation of a Ufer grounding electrode system, and street space permits were obtained. More recent maintenance work was undertaken in 2008 with sewer repairs performed, following a sewage backup incident reported in January 2021 that resulted from a 4-inch sewer vent issue.

The building has maintained basic care of its surroundings, as evidenced by the resolution of a street cleaning complaint regarding loose garbage from December 2022. While the property's history shows active maintenance and improvements, including a cancelled permit application from 1990 to legalize additional rooms on the first floor, the more recent issues seem to have been promptly addressed. The most significant modifications on record have focused on safety improvements and necessary infrastructure updates.