2433 23rd Ave, San Francisco, CA 94116

The two-unit, two-story multi-family residential building at 2433 23rd Avenue in Parkside, owned by Kwan Family Trust, has undergone several significant modifications since its construction in 1921. The most notable recent development was the legalization of a second dwelling unit completed in 2018, consisting of a 670 sqft 1-bedroom, 1-bath apartment at the ground floor, following the city's Ordinance No.43-14. This process involved multiple permits, including a $13,100 legalization permit in 2015 and a revision to reconfigure rear stairs in 2018, along with corresponding electrical and plumbing upgrades for kitchen and laundry facilities.

Earlier improvements from 1996 included the addition of rooms and a full bath on the ground floor, replacement of seven rear windows, bathroom remodeling, and termite control work. The property has experienced several maintenance issues in recent months, with the most pressing being two sewage back-up incidents from the side sewer vent reported in December 2024. Other recent concerns include reports of excessive noise (still open as of December 2024), damaged side sewer vent cover, and multiple parking enforcement actions.

While the building underwent substantial improvements in the 1990s and 2015-2018 period, the recent sewer-related problems and noise complaints may warrant attention. It's worth noting that the building has maintained compliance with unit count requirements, as evidenced by the January 2025 Rent Board call, which confirmed updates to the housing inventory. The property has also gone through regular seasonal maintenance challenges, as shown by multiple reports of Christmas tree disposal in January 2025 and various street cleaning issues.