927-929 Wisconsin St, San Francisco, CA 94107

The two-unit residential building at 927-929 Wisconsin Street in Potrero Hill is a 2-story flats and duplex structure built in 1943, currently owned by John E. Mason. The building's maintenance history shows some significant work completed in 2003, when repairs were made to address stucco and plywood sheathing issues, though records indicate these permits have since expired.

A more sustainable upgrade was completed in 1985 with the installation of a solar pre-heat system for domestic hot water, demonstrating early investment in energy efficiency. Recent street conditions around the property have generated multiple reports through the 311 system, with the most recent calls in 2025 and 2024 relating to litter receptacle maintenance and general street cleaning. The area has experienced recurring issues with loose garbage on sidewalks, as evidenced by multiple reports between 2018-2024.

There have been several incidents involving abandoned vehicles on the street, with the most recent in January 2024, and two significant public safety concerns in 2018-2019 involving human or animal waste on public property. A notable safety incident occurred in October 2017 involving a pavement defect and a potentially hazardous down wire situation that required PG&E intervention. While these exterior issues don't directly impact building habitability, they do reflect on the surrounding neighborhood conditions.