3401-3411 20th St, San Francisco, CA 94110

The 6-unit, 3-story multi-family residential building at 3401-3411 20th Street in the Inner Mission, owned by the Helen Kong Trust, was constructed in 1908 and has undergone several significant renovations and faced some notable incidents over its history. Most recently, in 2021, the building underwent a substantial kitchen and bathroom remodel costing $44,600, with associated plumbing and electrical work completed in July 2021. The building successfully completed its mandatory soft-story retrofit in 2017, demonstrating compliance with seismic safety requirements.

A serious incident occurred in January 2014 when a fire affected the ground floor stairwell on the south elevation, resulting in repairs to stairs, siding, windows, and interior finishes costing $7,200. The building has also addressed several fire safety concerns, including the installation of fire sprinklers related to a garbage chute in 2018, which resolved violations from 2016-2017 regarding fire sprinkler requirements. The property has a history of maintenance issues that have been systematically addressed, including a 2017-2018 violation requiring garbage chute fire sprinklers, 2014 repairs following fire damage, and a 2007 dry rot repair to rear stairs.

While there are no active building violations as of October 2023, a 1997 complaint regarding rotten floor boards remains in active status, which may warrant attention. More recently, from late 2024, there have been multiple street cleaning requests in the vicinity, though these are external to the building itself. The building's fire safety systems have been tested, with multiple recorded false alarms and system activations with no civilian injuries, demonstrating the system is operational but prone to non-emergency activations. The building maintains compliance with current safety regulations, though its historical record shows periodic maintenance and safety upgrades have been necessary to address various code requirements and infrastructure needs.