4321 21st St, San Francisco, CA 94114

The 8-unit, 3-story apartment building at 4321 21st St, owned by 4321 21st St LLC, was constructed in 1964 and is located in the Eureka Valley/Dolores Heights neighborhood. The property has undergone several significant improvements over the past decade, including a mandatory seismic soft-story retrofit completed in 2014 (though currently listed as non-compliant), kitchen and bathroom renovations in units 1 and 6 (2019 and 2016 respectively), and most recently, fire alarm system upgrades in July 2023 and 400-amp electrical service replacement scheduled for 2024.

The building has a history of moisture-related issues documented in 1998-1999, with multiple complaints about leaks affecting various units and common areas, though these problems appear to have been resolved. A series of building violations were issued in 2002 regarding fire safety and roof deck maintenance, all of which were abated by August 2002, and routine housing inspections were conducted in 2002, 2011, and 2014 without any noted ongoing concerns. Recent maintenance activities indicate ongoing investment in building infrastructure, with the most recent electrical upgrades demonstrating attention to modern safety standards.

A pattern of abandoned vehicle reports and other minor neighborhood issues has been recorded through 311 calls in 2024, though these are unrelated to building conditions. The property's permit history shows regular maintenance and upgrading of individual units, particularly in terms of kitchen and bathroom facilities, while also addressing larger building systems such as electrical service and fire safety equipment. The building's age (built in 1964) and history of water-related issues in the late 1990s suggest that proper maintenance and system upgrades have been important to maintaining resident comfort and safety in more recent years.