4470-4472 23rd St, San Francisco, CA 94114

The property at 4470-4472 23rd Street in Noe Valley is a two-unit, two-story residential building constructed in 1908 and currently owned by Maria T Calkins. The building underwent significant renovations in 2011, including a major facade renovation, entry stairs replacement, window installations, and upper unit remodeling of bathrooms and kitchens, with associated structural work totaling over $50,000. More recent improvements include electrical upgrades with the installation of two solar panel systems (2016-2017), followed by the installation of a 240V circuit in 2023.

The building's electrical infrastructure was substantially modernized in 2012 with a 200-amp service upgrade and three meters installation. The property has had minimal maintenance issues, with a notable plumbing violation regarding a house trap installation in 2006 that was promptly resolved within two months. Recent activity around the property has primarily involved routine municipal services, including street cleaning and parking enforcement, with multiple reports of blocked driveways by various vehicles throughout 2023.

Of particular note, there was a power line incident reported near the property, though no civilian injuries were recorded. The building's maintenance history shows regular upkeep and modernization efforts, particularly in 2011 when most major renovations were completed, while more recent improvements focus on sustainability features like solar panels. The property has maintained compliance with building codes since resolving the 2006 violation, and there are no active building violations on record as of October 2023.