1251-1253 20th Ave, San Francisco, CA 94122

The three-unit, two-story multi-family residential building at 1251-1253 20th Avenue in the Central Sunset neighborhood was constructed in 1908 and is currently owned by Wskk Llc. The property has undergone several significant improvements over the years, with the most substantial being a mandatory soft story retrofit completed in 2017 at a cost of $78,000, bringing the building into compliance with SF Building Code Chapter 4D requirements.

In 2019, the building received final inspection approval for window installations completed in 2011, which included the installation of two double-pane vinyl windows that meet modern energy efficiency standards. A notable complaint was filed in May 2019 regarding construction safety concerns when a resident's balcony was removed for seismic retrofit work and remained unrepaired for over a week, though this issue appears to have been resolved as the case is marked as not active. The building has had periodic inspections and maintenance work dating back to 2000, with several violations recorded in February 2000 that were subsequently abated, including issues related to combustible storage, mold, gas utility safety, lighting, and a damaged front passageway door.

More recent history shows relatively minor maintenance issues, with the most recent 311 calls involving reports of mold and mildew (November 2024) and garbage and debris (August 2024). The property underwent exterior work in 2001, including remediation of dry rot and interior remodeling, as well as repairs to a detached rear cottage. While there have been routine housing inspections and minor maintenance issues reported over the years, the building's recent history suggests active management and compliance with safety requirements, including the completion of mandatory seismic retrofitting and proper handling of building permits.