670 Valencia St, San Francisco, CA 94110

The building at 670 Valencia Street in the Mission Dolores neighborhood, owned by Mission Housing Development, appears to be a well-maintained multi-family residential property with a history of appropriate safety upgrades and maintenance. Originally constructed between 1995-1998, the property was developed as a four-story building with 28 units (construction cost of $3.25 million) and later received permits for additional work including fire sprinkler and alarm system installations, both of which were successfully completed.

The building has undergone several important infrastructure updates over the years, including the replacement of defective backflow devices in 2019, domestic hot water boiler replacements in 2015, and a fire alarm system complaint that was promptly corrected within a day in December 2014. The property has maintained regular inspections by Housing Inspection Services, with documented routine apartment house inspections in 2002, 2011 (no violations found), and a complaint regarding a non-functional intercom system in early 2013 that was resolved within a week.

While there was an electrical permit application in 2007 for extensive lighting and electrical work, this permit was cancelled and no further documentation of this work is available. Overall, the building's maintenance record shows prompt attention to infrastructure issues and compliance with safety requirements, with most recent documented work focusing on plumbing system updates and safety systems maintenance.