977-979 14th St, San Francisco, CA 94114

The two-unit residential building at 977-979 14th Street in San Francisco's Duboce Triangle neighborhood is a two-story flats and duplex structure built in 1958, currently owned by Ralph D.

Stead and Cand Acosta. The building's most recent significant maintenance work was completed in January 2011, when a plumbing project successfully replaced the house trap and up to 10 feet of sewer pipe, along with obtaining street space and sidewalk permits.

Looking back at the building's history, there are records of a reroofing project initiated in July 1996 (though this permit has since expired) and window maintenance work undertaken in August 1988 (also expired). The relatively sparse permit activity over the decades, particularly regarding more recent maintenance and improvements, suggests that while the building has received some basic infrastructure updates, there may have been limited major renovation work or system upgrades in recent years.