3145-3147 Jackson St, San Francisco, CA 94115

The property at 3145-3147 Jackson Street is a two-unit residential building located in Pacific Heights, constructed in 1904 and currently owned by Seal Rock Capital LLC. The building has undergone significant renovation work, with the most substantial project occurring in 2018 when permits were issued for major improvements including the excavation of a new garage and basement, replacement of front masonry stairs, window modifications, and the addition of new decks and a penthouse, with an estimated cost of $1,200,000. This project required approximately 15 feet of excavation and the removal of about 2,000 cubic yards of soil.

Temporary shoring permits related to this work were filed in July 2024, indicating ongoing structural modifications. The property has experienced some maintenance and compliance issues, particularly in 2015 when multiple complaints were filed regarding unauthorized plumbing, electrical, and general construction work on the property. These issues were subsequently addressed, and proper permits were obtained in March 2015 for bathroom renovations, including plumbing and electrical work.

The building's maintenance history shows regular upkeep, including bathroom repairs in 2015 and older records of roofing work in 1993 and bathroom fixture replacements in 1995. More recent infrastructure concerns include sidewalk defects and a damaged side sewer vent cover reported in 2022, and a sidewalk defect related to tree roots reported in December 2024. A fire incident was recorded with no civilian injuries, though the exact date and circumstances were not specified in the records. The building's planned improvements, once completed, will increase its size from approximately 6,642 to 10,645 square feet and add three off-street parking spaces, significantly enhancing its residential amenities.