263 18th Ave, San Francisco, CA 94121

The two-unit, two-story multi-family residential building at 263 18th Avenue in the Central Richmond district, owned by the Leung & Chang Family Trust, has undergone several significant improvements since its construction in 1922. Most notably, in 2019, permits were issued for the addition of an accessory dwelling unit (ADU) featuring one bedroom, two bathrooms, and an office, with work valued at $100,000.

The property has experienced some maintenance and safety issues over the years, including multiple fire code violations in March 2020 related to an alarm system and fire extinguisher maintenance, though these violations were subsequently abated. A retaining wall replacement was completed in 2016 at a cost of $15,000, and earlier interior improvements were made in 2006 including kitchen and bathroom renovations, accompanied by electrical updates. The building's more recent history includes various municipal service interactions documented through 311 calls, primarily related to street maintenance and parking issues.

In 2023, there were reports of tree-related property damage (resolved), while earlier concerns from 2020 involved waste removal and transit shelter maintenance. The most recent building-related service request was made in October 2024 regarding street lighting. The property's maintenance record shows consistent attention to both structural and aesthetic improvements, though the 2020 fire safety violations indicate some lapses in building maintenance protocols at that time.