518-520 33rd Ave, San Francisco, CA 94121

The property at 518-520 33rd Avenue in San Francisco's Outer Richmond district is a two-unit, two-story multi-family residential building constructed in 1925, currently owned by the Vincent Louie Trust For Spe. The building's maintenance and improvement history shows regular upkeep over the past few decades, with significant work performed in 1993 when kitchen cabinets were replaced and insulation was added to the attic.

The following year, in 1994, there was a roofing project undertaken, though records indicate this permit expired. More recent improvements include a completed project from 2000 valued at $8,000, though specific details of this work are not provided in the records.

Two Section 106 reviews were conducted at the address, though these were marked as closed and did not list any associated developers or notable findings. While the building appears to have received regular maintenance over the years, the most recent permit on record is from 2000, suggesting there may have been no major permitted modifications in the past two decades, though this does not necessarily reflect the building's current condition.