647-649 5th Ave, San Francisco, CA 94118

The two-unit multi-family residential building at 647-649 5th Avenue in San Francisco's Inner Richmond district, owned by Huang Fan, has undergone several significant maintenance and repair projects since its construction in 1907. The property experienced notable issues in 2016, when multiple violations were documented, including problems with interior surfaces, weatherproofing, lead paint concerns, mold and mildew presence, and plumbing deficiencies.

These violations were addressed through various permits, including stair repairs, drainage pipe replacement, and compliance work that totaled approximately $3,000 in construction costs. The building received substantial upgrades in subsequent years, including a complete sewer replacement and street space work in 2018, and an electrical service upgrade to 200 amps in 2011. Historical maintenance records reveal recurring structural challenges, particularly with stairs and walls.

A 2013 complaint documented dry rot in the back stairs and concerns about water damage affecting the roof and walls, while earlier records from 1991 show repairs to rear stairs and railing. More recent concerns were raised in 2021 regarding potential lead exposure due to work being performed on the property, though this complaint is currently listed as not active. The building has undergone various repairs over the years, including a 2003 project to replace dry-rotted studs and siding on the east side of the garage, though this permit expired.