271-273 17th Ave, San Francisco, CA 94121

The three-story, multi-family residential building at 271-273 17th Avenue in the Central Richmond neighborhood, owned by Tan Seong Tian & Len Mei, was originally built in 1922 and contains two units. The building underwent significant transformations between 2000-2004, beginning with cancelled demolition and new construction permits in 2000, followed by an approved major vertical and horizontal addition in April 2001 costing $313,000, completed in 2004.

During 2003, several concerning events occurred, including emergency work to brace a collapsing second-floor wall, removal of loose debris, and violations for exceeding the scope of approved plans by demolishing or removing framing members at the front second-floor street side (bay windows) and second-floor partitions, as well as removing approximately 15 feet of partition wall. These violations were ultimately abated in May 2012. The building received several safety and modernization upgrades, including a new fire sprinkler system installation in 2004 (cost: $14,000) and multiple electrical improvements such as the installation of 53 lights, 33 switches, and two panels during the 2003-2004 renovation period.

Plumbing work included the reinstallation of a backflow preventer bypass in 2014. While two complaints were filed in 1993 regarding possible illegal units, these were subsequently closed. The property's maintenance record shows routine street cleaning and handling of abandoned vehicle issues in the surrounding area, with several incidents of abandoned vehicles reported between 2010-2018, though these were not directly related to the building's condition or management.