426-428 Waller St, San Francisco, CA 94117

The two-unit residential building at 426-428 Waller Street in Hayes Valley is a two-story flats and duplex structure built in 1900, currently owned by Dana Ivan. The property has undergone several significant renovations and faced notable challenges over the years. A major incident occurred in 2011 when the building sustained fire damage, particularly affecting the west elevation wall and upper floor kitchen ceiling, which required subsequent abatement and repairs costing $25,000.

In 2012-2013, the building underwent substantial improvements including the replacement of interior stairs with a new third-story deck and spiral stairs, foundation work for the lower deck, and electrical upgrades including kitchen rewiring and a new tankless water heater installation. The building's infrastructure has seen significant upgrades since 2005, including a 200-amp electrical service upgrade and furnace installation. However, there have been multiple building violations, including expired permits for interior wall removal in 2007 and fire-related violations in 2011 that are still listed as active. Recent history shows ongoing maintenance issues in the vicinity, with multiple 311 calls in 2024 regarding garbage, parking violations, and sidewalk conditions, though most of these were resolved promptly.

A collapsed sidewalk complaint from September 2023 is currently open and accepted. Planning records indicate approved projects for side and rear yard alterations, including exterior secondary rear egress stairs. The building's recent activity suggests regular maintenance and improvements, though the outstanding building violations and the age of the structure warrant attention to ongoing maintenance requirements. The most recent permits and improvements have generally focused on safety upgrades and infrastructure improvements, suggesting proactive maintenance by the current ownership.