666-668 Vermont St, San Francisco, CA 94107

The two-unit residential building at 666-668 Vermont Street in Potrero Hill, owned by Tore Langmo and Peggy Lopiper, is a two-story duplex structure built in 1937. The building has undergone several significant maintenance and improvement projects over the past decades, with the most recent being a TPO roofing project valued at $21,400 authorized in January 2025, and earlier work in 2021 involving $30,000 of repairs and replacements to siding and windows on the building's rear side.

The property received a substantial electrical upgrade in 2012, which included a 200-amp service upgrade and installation of various electrical components serving both units and common areas, though this permit has since expired. The building's recent maintenance history shows regular upkeep, including a completed re-roofing project in 2007. The property has experienced several infrastructure challenges over the past few years, most notably a sewage backup incident in January 2020 that was resolved by the PUC Sewer Operations team.

The surrounding area has seen multiple reports of illegal parking between 2018-2024, with varying outcomes, though these incidents primarily affect public space rather than the building itself. The immediate vicinity experienced some urban maintenance issues in 2020, including reports of overflowing city garbage cans and loose garbage, though these were generally resolved promptly. A pavement defect was reported and resolved in June 2018, though this again pertains to public infrastructure rather than the building itself.