19-21 Cortland Ave, San Francisco, CA 94110

The two-unit residential building at 19-21 Cortland Ave in Bernal Heights is a two-story flats and duplex structure constructed in 1902, currently owned by the Bright Winn 2018 Revocable Living Trust. The property has undergone significant seismic improvements in 2022, including foundation repairs and the installation of steel columns, with a total cost of $135,000.

Current work is ongoing to convert existing storage into an Accessory Dwelling Unit (ADU) on the first floor, following state ADU program guidelines with a budget of $255,000. The building's maintenance history shows regular attention to structural elements, including wood exterior stairs repairs in 2017, reroofing in 2015, and window upgrades in 2007.

A notable cluster of activity occurred in 2022-2023, including multiple building permit revisions and seismic retrofits. The property has experienced several maintenance and regulatory challenges, including a possible illegal unit investigation in 1994, withdrawal of a preschool conversion proposal in 2022, and recent concerns about unpermitted dwelling units (UDU) discovered during screenings. While there have been multiple 311 calls regarding parking violations and street maintenance in the vicinity, these are external to the building itself and primarily concern public street usage.