831 Wisconsin St, San Francisco, CA 94107

831 Wisconsin Street is a two-unit, one-story multi-family residential building located in Potrero Hill and owned by Luke Pappas. Built in 1931, this flats/duplex-style structure has undergone significant modifications and faced several challenges over recent years.

The most pressing concern is an active code violation from October 2017 regarding unauthorized raising of the rear building by 6-8 feet, which was later addressed through multiple permits and compliance actions including a voluntary seismic retrofit in 2019 costing $250,000. The property has seen substantial work between 2017 and 2020, including structural strengthening, remediation of dry rot, reroofing, and attempts to add additional dwelling units (ADUs), though some permit applications for ADU additions were withdrawn or cancelled. The building's recent history has been marked by various maintenance and compliance issues, including a fire complaint regarding exit maintenance in 2017 (ruled as having no merit) and significant construction work to address both structural and safety concerns.

Of note, there has been a concerning pattern of sanitation issues reported in the vicinity of the property in 2024, with multiple 311 calls regarding garbage, debris, and instances of human waste or urine on the street, though these are external to the building itself. The property also experienced a tenant buyout in 2016 for $500, though only one tenant was involved in this transaction. While the building has undergone numerous improvements and compliance corrections, the active nature of some violations and the pattern of recent sanitation complaints in the area warrant attention to the building's ongoing management and maintenance practices.