489 Douglass St, San Francisco, CA 94114

The two-unit residential building at 489 Douglass Street, owned by Michael J. Finney, was constructed in 1900 and has undergone several significant improvements over the years. Most notably, recent upgrades include the installation of a new air conditioning unit with associated safety features, with permits issued in 2024 showing a $12,500 investment in HVAC infrastructure.

The building has demonstrated a commitment to modern amenities and sustainability, having successfully installed solar water heating in 2010 and an 18-module solar PV system in 2006. An interior renovation project completed in 2012 added closets with pocket doors, new hardwood flooring, fluorescent lighting, and updated electrical infrastructure in the front bedrooms, while 2010 saw important maintenance work including dry rot repairs and exterior staircase replacement. The property has received regular maintenance attention, including window and siding repairs in 1996 and termite repairs in 1995. Historical records show earlier attempts at horizontal additions in 1997-1998, though these permits expired.

The building's infrastructure improvements have been accompanied by appropriate safety measures, such as seismic foundation bolting installed in 1992. Recent external incidents have been limited to two tree-related issues reported in 2022, both of which were resolved and deemed not to pose immediate safety hazards. The property's planning records indicate various approved modifications, including proposals for new decks and stairways, though some earlier permit applications were appealed and upheld. The building's maintenance and improvement history demonstrates ongoing investment in both infrastructure and resident comfort, with no recorded safety violations or persistent maintenance issues.