412 Madrid St, San Francisco, CA 94112

The two-unit residential building at 412 Madrid Street in the Excelsior neighborhood, owned by Wu Wanglan, is a 2-story flats and duplex structure built in 1991. The property underwent significant renovations in 2018, including a complete kitchen and bathroom remodel in the lower unit with associated plumbing and electrical work totaling approximately $35,000.

A substantial series of building violations was recorded in September 2017, involving issues with carbon monoxide alarms, smoke detectors, cockroach infestation, water damage, weatherproofing of siding, ventilation problems, and interior surface maintenance needs. All these violations were officially abated by February 2018, following a final warning letter issued in October 2017 and a director hearing in January 2018. The building's maintenance history shows attention to critical infrastructure, with repairs to back stairs and decks completed in 2014 and various building modifications in 1991, including the elimination of sprinklers and a revision to reduce occupancy.

More recently, there have been multiple parking-related complaints near the property, with several incidents of vehicles blocking driveways between 2023-2024, and a current open issue regarding property damage involving urban forestry. There have also been some sanitation-related concerns in 2023 and 2024, particularly regarding garbage and debris. While the major structural and safety violations from 2017-2018 have been resolved, ongoing parking and outdoor maintenance issues have persisted in more recent years.