4073-4075 17th St, San Francisco, CA 94114

The property at 4073-4075 17th Street is a 2-unit, 2-story multi-family residential building located in the Corona Heights neighborhood, built in 1907 and currently owned by Paul Jacob Schwarz. The building has undergone several significant renovations over the past decades, with the most recent major work occurring in 2018 involving the conversion of an existing closet into a new bathroom on the second floor, including associated plumbing and electrical work totaling approximately $16,000. In 2016-2017, substantial modifications were made including the reframing of the porch and the conversion of a first-floor area into a second unit with kitchen installation, though this work appears to have triggered some concerns as documented in multiple complaints during 2015 regarding unpermitted construction work, particularly concerning basement level modifications.

The building has a documented history of plumbing and electrical improvements, including sewer/housetrap replacement in 2014 and various kitchen-related installations. More recent concerns have emerged primarily related to property maintenance, with multiple 311 calls between October and December 2024 regarding garbage and debris on the property, though these appear to be primarily street-level issues rather than structural or habitability concerns. A notable complaint was filed in September 2021 regarding alleged unpermitted work on both units, though this case was marked as "Not Active" in March 2022. The building's permit history shows regular maintenance and upgrades, including gas stove installations and various infrastructure improvements, suggesting ongoing investment in property maintenance.

The property has also had several street space permits issued between 2014-2018, indicating use of public space for some building-related activities. The building's history indicates a pattern of both permitted and allegedly unpermitted modifications, particularly during the period around 2015-2016, when multiple complaints were filed regarding construction activities. Recent concerns have been more focused on exterior property maintenance rather than internal modifications or habitability issues. The most recent building improvements have been properly documented through appropriate permits, suggesting improved compliance with building regulations, though the 2021 complaint about unpermitted work indicates that such concerns may not be entirely resolved.