529 21st Ave, San Francisco, CA 94121

The four-story, two-unit residential building at 529 21st Avenue in the Central Richmond neighborhood, owned by Leung Waishan, was constructed in 2007 following the demolition of a single-family home on the site. The $581,000 project underwent several significant modifications during construction, including the installation of a 5-stop hydraulic elevator, fire sprinkler systems, and extensive electrical and plumbing infrastructure comprising 10 sinks, 6 toilets, 6 bathtubs, 2 furnaces, and 2 water heaters. The construction period saw some regulatory challenges, with a notable violation in 2007 regarding expired permits and work beyond scope, though this was abated by October 2007.

An earlier complaint in 2005 concerned the building's height exceeding 40 feet, though this was quickly resolved. After completion, the building's maintenance history has been relatively quiet, with only routine issues reported through 311 calls between 2015 and 2016, primarily related to sidewalk defects and temporary moving signs. The property has undergone proper inspection and resolution processes for these minor issues.

The building's construction involved careful adherence to SF Planning Department requirements, securing Mandatory Discretionary Review approval and remaining within the RH-2 district's regulations. The extensive list of completed permits demonstrates comprehensive infrastructure installation, including 200-amp electrical service, security features like a garage door opener, and compliance with all necessary building codes. While there were initial concerns about construction scope and permit compliance, these were addressed appropriately by the owner and contractor.