537-539 Delta St, San Francisco, CA 94134

The two-unit residential building at 537-539 Delta Street in Visitacion Valley, constructed in 1945 and classified as a Flats & Duplex, has experienced several significant events over its history. Particularly notable is a serious fire incident in December 2005 that necessitated extensive repairs to two bedrooms, a living room, and a kitchen, along with window, door, and skylight replacements, affecting less than two-thirds of the building's floors.

This fire damage repair work, completed in early 2006, was accompanied by a comprehensive rewiring of the entire house, showcasing substantial electrical system upgrades. In August 2004, prior to the fire incident, the ground floor underwent improvements including the addition of a social room, exercise room, and bathroom, along with corresponding electrical work. The building has seen various maintenance and improvement projects over the years, including gas line work in 2016, a complete reroofing in 1998, and multiple permit adjustments related to kitchen and bathroom renovations.

A significant safety concern arose in 2004 when construction work led to improper gas line ventilation, creating a hazardous situation that required intervention from PG&E and the Plumbing Inspection Division, though this issue was eventually resolved. The most recent building permit activity recorded was in March 2020 for street space work valued at $1.00. While the building has undergone various renovations and improvements over the years, the records suggest that the major systems (electrical, plumbing, etc.) have been updated to modern standards, though potential tenants should be aware of the building's history of fire damage and subsequent repairs.