41-43 Duncan St, San Francisco, CA 94110

The property at 41-43 Duncan St is a single-story, two-unit residential building located in Bernal Heights, built in 1907 and currently owned by John A. Sr. Affolter.

The building has undergone several significant improvements over the past two decades, including a major solar installation in December 2018 consisting of 27 PV modules with a total rating of 8.775 kW, and the installation of a 40-amp car charger in January 2019. The property's maintenance history shows attention to essential systems, with a water heater replacement in January 2009 and past improvements including reroofing in 2005, kitchen renovations in 1999, and the installation of stairway chair lifts for accessibility in 1999. Recent activity at the property has primarily involved parking-related issues, with multiple reports of vehicles blocking driveways, illegal parking, and parking on sidewalks between 2022 and 2024.

The most recent incidents occurred in 2024, including noise complaints and parking enforcement calls, though most responded officers were unable to locate the offending vehicles. There have been some infrastructure assessments in 2023, including a street sign repair and a curb inspection, though no significant defects were found except for minor hairline cracks. The building's records show regular maintenance and modernization efforts, particularly in terms of accessibility and sustainability improvements, while the majority of recent concerns relate to parking violations, which are primarily external to the building's management purview.