145-147 Cook St, San Francisco, CA 94118

The two-unit residential building at 145-147 Cook Street in the Lone Mountain neighborhood, owned by John L & Mary A Evilsizor, was constructed in 1900 and has undergone several significant modifications throughout its history. The most substantial work occurred in 2003-2004, when the property underwent a major renovation including the addition of a playroom, bedroom, bathroom, and laundry room on the ground floor, along with rear wall repairs due to dry rot, new slab and wall footings, and drainage system improvements.

These improvements were completed properly, though they initially drew attention from housing inspectors. In 2004, there was a notable enforcement action regarding an unpermitted horizontal addition at the rear of the building, including third-floor enlargement, new roof deck, and stair modifications, which was ultimately abated by September 2007. There were subsequent concerns about unauthorized modifications, with complaints in 2012-2013 regarding a possible illegal unit behind the garage with kitchen and bathroom facilities, though these complaints are now marked as not active.

The building's system upgrades include a gas line improvement in 2010 for water heaters and electrical work in 2004 for a sewer ejector motor. Recent years have seen relatively few building-specific issues, though there have been multiple street-related complaints in late 2023 regarding sidewalk parking, vehicle abandonment, and sign maintenance, which were generally addressed by city services through standard enforcement procedures. The most recent building permit activity was limited to infrastructure maintenance, such as sidewalk work in 2009 and street space permits, with no major structural modifications reported in recent years.