488-494 4th Ave, San Francisco, CA 94118

488-494 4th Avenue is a four-unit, four-story multi-family residential building constructed in 1906 and currently owned by Edmond Kwok. The property has experienced several significant maintenance issues over the years, with the most pressing concerns occurring in recent years. An active complaint from February 2019 remains unresolved, detailing problems with mold, non-functioning window locks, water leaks through windows, and multiple building maintenance violations including water damage, damaged walls, and potential lead paint hazards.

The building has undergone various repairs and improvements, including the replacement of 12 vinyl double-hung windows in 2019 ($7,000), and significant bathroom renovations in units #492 and #494 in 2010 ($10,200) involving new tile tub enclosures and bathtubs. Historical issues included a serious dry rot problem in 2013 affecting the rear deck and siding, requiring repairs costing $2,000. The building has a documented history of routine safety inspections, with the most recent being in December 2015.

Past violations from 2001 included multiple fire safety concerns such as stair replacement needs, fire extinguisher recharge requirements, and handrail repairs, though these were resolved by November 2001. The property has also experienced various plumbing and infrastructure issues, including a sewage backup incident in 2012 and several sidewalk defects in 2013 and 2021. Recent maintenance actions include a sidewalk repair completed in 2021, though earlier sidewalk issues from 2013 (25 square feet of damaged/uneven sidewalk) were only addressed after a notice to repair. The building's maintenance history shows ongoing challenges with water-related issues, including visible evidence of water damage and moisture problems that have persisted for several years, warranting attention to building envelope performance and moisture management systems.