18-26 Allen St, San Francisco, CA 94109

The two-story, four-unit multi-family residential building at 18-26 Allen Street in Russian Hill, owned by Bernard & Christina Ruddy R, has undergone several significant maintenance and improvement projects since its construction in 1908. Most notably, the building has received substantial window upgrades, with two major window replacement projects: in 2017, 18 windows were replaced with vinyl windows ($16,900), and in 2013, the front facade's aluminum slider windows were upgraded to architectural-grade fiberglass windows ($10,000). A routine housing inspection in December 2017 revealed several compliance issues that were subsequently addressed and abated by June 2018, including the installation of carbon monoxide alarms, smoke alarms, and the provision of required safety documentation for exterior appendages.

The building's heating system was modernized in February 2021 with the replacement of an existing console heater. Historical records show earlier concerns from 2002 regarding lead paint hazards and weather-proofing issues, which were also addressed. The property's maintenance history shows regular attention to building envelope systems, particularly windows, with three separate window-related permit applications from 2011-2017.

The building has undergone routine housing inspections in 2002, 2010, and 2017, with the most recent inspection resulting in multiple violations that were addressed within six months. Several 311 calls related to the property were logged between 2010-2017, primarily concerning street-level issues such as waste removal and sewer problems, as well as one report of a police wellness check in 2017. The most recent major interior improvement was the 2021 heating system upgrade, indicating ongoing investment in building maintenance and safety systems.