747 Vienna St, San Francisco, CA 94112

The two-unit residential building at 747 Vienna Street in the Excelsior neighborhood, owned by Jianwen Jin & Yu Yuan Rev L, is a two-story flats and duplex structure built in 1911. The property has had several significant events, most notably the unsuccessful attempt at a rear addition project in 2004 that resulted in an expired permit and subsequent violation notice in 2009, though this violation was eventually abated in 2012.

The building underwent an electrical system upgrade in 2003, with the installation of a new 200-amp meter system for both units, which was completed successfully. Recently, the property has experienced multiple issues requiring attention, particularly in early 2025, including reports of sewage back-up discharge, furniture debris on the street, and various parking violations. Between December 2024 and January 2025, there were several parking-related incidents recorded, including citations for parking on sidewalks, an abandoned vehicle situation, and complaints about double parking and driveway blocking.

A false fire alarm incident was recorded at the property, though no civilian injuries were reported. The building's historical permit and violation records suggest that while major structural modifications have not been completed, the property has received basic infrastructure improvements in the past. The recent cluster of parking and sanitation issues appears to be more related to the immediate vicinity of the building rather than the building's internal conditions themselves.