1397-1399 23rd Ave, San Francisco, CA 94122

The two-unit multi-family residential building at 1397-1399 23rd Avenue in San Francisco's Central Sunset neighborhood, owned by the Man C & Helen Chan Revocable Trust, was constructed in 1939 and exhibits classic flats and duplex architecture over two stories. The property has undergone several significant improvements over the years, including multiple window installations between 2001-2003, when a total of 36 vinyl windows were added across different permits, totaling approximately $11,440 in improvements. A more recent and critical incident occurred in July 2020, when a vehicle collided with the building, causing moderate structural damage to the garage area, including a support post displacement and several damaged studs.

This incident prompted emergency repairs costing $10,000 to address the damage and comply with subsequent notice of violation requirements, with the work successfully completed by October 2020. The building's maintenance and violation history shows attention to both routine upkeep and emergency responses, with particular focus on window upgrades and structural maintenance. A notable repair was performed in 1998 to address dry rot in the back stairs, demonstrating ongoing maintenance efforts.

While the building itself has had relatively few violations, the surrounding area has experienced periodic issues as evidenced by multiple 311 calls in 2023-2024, primarily concerning street cleaning and parking enforcement matters. These external issues, including recent reports of debris, waste, and blocked driveways, have been consistently addressed by relevant city services, though they are not directly related to the building's condition or management. The most recent building-related actions appear to be primarily focused on external maintenance matters rather than structural or safety concerns, suggesting that the major repairs from the 2020 incident have been properly addressed.