21-23 Prospect Ave, San Francisco, CA 94110

The property at 21-23 Prospect Avenue is a 2-unit, 2-story multi-family residential building located in Bernal Heights, constructed in 1979 and currently owned by the Robert Mittelstadt Revocable Trust. The building has undergone significant interior improvements in recent months, with major renovation work initiated in late 2023 involving kitchen and bathroom remodels on the second floor, and substantial bedroom and bathroom modifications on the third floor, with a total estimated cost of $93,000.

This was followed by a revision in early 2024 to eliminate specific structural components (PSL beams), and similar renovation work was completed in October 2023 involving electrical upgrades, plumbing improvements, and kitchen/bathroom remodeling valued at $66,000. The property has seen consistent maintenance and improvement efforts over the years, including the installation of a rooftop solar system in 2016 (3.8 kW with 11 PV modules), and structural work completed in 2006 regarding a retaining wall replacement that involved collaboration with neighboring properties. A tenant buyout occurred in August 2023 at Unit 23 for $35,000.

The building's recent history shows one fire complaint regarding illegal occupancy in October 2019, which was referred to the Department of Building Inspection. The property has experienced several parking-related issues in the vicinity, with multiple reports of abandoned vehicles and illegal parking between 2019 and 2022, though these are external to the building itself. A rent board service request was made in February 2022, which was resolved with a correction of the unit count.