270 12th Ave, San Francisco, CA 94118

The 6-unit, 3-story multi-family residential building at 270 12th Avenue in San Francisco's Inner Richmond district has undergone several significant improvements since its construction in 1959, with particular attention to safety and structural integrity. Most notably, the building completed a seismic retrofit in 2015 as a Tier 3 soft-story building, installing moment frames and plywood shear walls at the first story with a cost of $35,000, demonstrating compliance with mandatory seismic safety requirements.

The building has also seen substantial exterior improvements, including the replacement of wood siding with hardi plank siding in 2018 ($7,000) and addressed various maintenance and safety upgrades over the years. The property has a history of regular safety inspections and maintenance, with major improvements to its fire safety systems including the addition of garage sprinklers in 2011 ($750) and various fire safety modifications in 2000-2001. While there were violations noted in the 2000 inspection related to security, fire safety, and plumbing/electrical issues, these were all promptly addressed by January 2001.

More recent concerns included improper lead paint removal and unauthorized scaffolding work in 2018, though these cases were subsequently closed. The building's maintenance history shows regular compliance with safety requirements, with routine safety inspections conducted in 2005, 2009, 2017, and a 2018 complaint regarding building modifications. Recent permits indicate ongoing maintenance activity, including street space permits issued in 2015 and 2018.