240 27th Ave, San Francisco, CA 94121

The two-unit residential building at 240 27th Avenue, located in the Lake -- The Presidio neighborhood, is a two-story flats and duplex structure built in 1911, currently owned by Raymond Kwok K Chang.

The property's permit history reveals several significant events over the past four decades, with the most serious incident being a fire-related damage repair in December 1991, for which a permit was successfully completed.

Earlier in the 1980s, there were three notable permit applications: in March 1984, an alteration and new addition was completed; in April 1986, a proposed conversion to create two family units was submitted; and this 1986 application was subsequently renewed in January 1992, though its final status remains unclear as records indicate only a permit renewal rather than completion. While the building has undergone various modifications and faced challenges, including the fire incident, there are no recorded permits or violations in more recent years that would indicate ongoing structural or safety concerns.