1429-1431 Mason St, San Francisco, CA 94133

The two-unit residential building at 1429-1431 Mason Street in San Francisco's Nob Hill neighborhood, owned by Jay Tr, is a two-story flats and duplex structure built in 1925. The property has experienced several notable incidents over the past decade, with the most recent occurring in January 2021 involving an unlocatable vehicle improperly parked on the sidewalk.

There have been multiple reports of sidewalk parking violations, particularly in 2018 when a silver Lexus was cited for this infraction. Of particular concern were two sidewalk defect incidents reported in June 2015 involving a collapsed utility cover (from Comcast), though these were resolved through appropriate channels.

The building's fire alarm system has experienced several false activations between 2009 and 2020, including false alarms, unintentional smoke detector activations, and one malfunction, though fortunately none resulted in any civilian injuries. Other incidents include a 2009 report of offensive graffiti on the residential building and a 2014 service request related to paint work that was subsequently addressed by SFMTA. While the building has experienced various maintenance and enforcement issues over the years, particularly concerning parking violations, it's worth noting that no serious safety incidents have been recorded, and most issues appear to have been appropriately addressed through official channels.