1459 20th Ave, San Francisco, CA 94122

The property at 1459 20th Avenue is a two-unit, two-story multi-family residential building located in San Francisco's Central Sunset neighborhood, built in 1945 and currently owned by the Cecilia Kwan Trust. The most significant recent modification to the building occurred in 2015 when unauthorized modifications were rectified, including the removal of an illegal kitchen and its conversion into a laundry facility.

This project, costing $48,000, involved the legalization of two existing bedrooms, a multipurpose room, and the conversion of a full bathroom into a half bathroom on the ground floor, along with corresponding electrical and plumbing upgrades that were properly permitted and completed. Prior to this, in 2014, the building underwent necessary infrastructure maintenance with the repair and replacement of the sewer house trap. The building's earlier history shows several permitted improvements from the late 1990s, including a horizontal addition, bathroom layout revision, fire escape stair replacement, and stair modifications, all of which were successfully completed.

Two permits from 2001 and 1999 related to garage stucco work and reroofing respectively are listed as expired, though it's unclear if this work was ever completed. Between 2014 and 2021, there have been multiple 311 calls related to street and sidewalk conditions near the property, including reports of waste and general cleaning needs, but these were primarily external to the building itself and were all resolved by city services. A notable incident occurred in 2014 when city officials conducted a site visit regarding plumbing permit verification, which appears to have been resolved satisfactorily.