578 42nd Ave, San Francisco, CA 94121

The 2-unit residential building at 578 42nd Avenue in San Francisco's Outer Richmond neighborhood is a two-story flats and duplex structure built in 1954, currently owned by the Al-jamea Family Trust.

The property's documented history shows one significant maintenance improvement in recent years: in August 2015, the building received an issued permit for reinforcement work on wooden stairs in the backyard, representing less than 50% of the total stairs, with the project budgeted at $2,000.

While the building's permit history is relatively minimal, it's notable that this staircase reinforcement work was completed approximately eight years ago, suggesting the original wooden structure may have required strengthening. The limited number of permits on record could indicate either well-maintained systems or the possibility that not all improvements or maintenance activities have required formal permits.