19-23 Jasper Pl, San Francisco, CA 94133

The three-unit residential building at 19-23 Jasper Place in Telegraph Hill, currently owned by the Yee Family Trust since 2016, has undergone significant modifications since its 1909 construction. Most notably, between 2016-2018, the property experienced extensive renovations across all floors, including kitchen relocations, bathroom remodels, and electrical upgrades, with particular attention to legalizing previously unauthorized spaces. A concerning pattern of complaints regarding unauthorized unit modifications emerged between 2004-2012, particularly focusing on basement alterations, including an illegal unit with kitchen and bathroom facilities.

These violations, along with multiple fire safety issues (such as fire extinguisher maintenance and alarm system problems), were ultimately resolved by September 2012. The building's infrastructure has been actively maintained, with recent plumbing work including a 2021 sewer lateral and p-trap replacement using trenchless technology, demonstrating adherence to modern standards. There were several housing quality issues noted in the early 2010s, including mold problems and water leaks, though these appear to have been addressed through subsequent renovations.

The most recent building data shows primarily routine maintenance and cleanup activity in the surrounding area, with no active building violations or significant structural concerns recorded since 2018. A single carbon monoxide detector activation incident was reported, though no CO was detected and no injuries occurred. The property has maintained compliance with housing codes since resolving its previous violations, with recent work focusing on regular maintenance and infrastructure upkeep rather than major modifications.