23-25 Valparaiso St, San Francisco, CA 94133

The two-unit residential building at 23-25 Valparaiso Street in Russian Hill, owned by Nguyen Nelson, is a two-story flats and duplex structure built in 1910. The building's documented maintenance history shows some significant infrastructure work completed between 2004 and 2011, including a substantial electrical system upgrade in 2004 that involved installing new circuits, upgrading to a 150-amp service with two meters, and a reroofing project in 2006 costing $6,000.

More recently, the property experienced a sewer-related issue in August 2022 involving a 4-inch sewer vent, which was promptly addressed and resolved by the Public Utilities Commission. The building's external environment has seen several typical urban incidents over the past few years, including multiple parking-related complaints: in 2022, there were reports of a driveway blocking incident, an abandoned vehicle case involving a Corvette in 2021 (which was resolved when officers arrived), and another parking violation involving a Kia Soul in 2019 that resulted in a police response.

A notable administrative event occurred in February 2022 when the Rent Board updated the unit count to reflect the proper two-unit configuration, with the owner being informed that a refund process could take several months to complete. The building's permit history shows some street space permits issued in 2011, though the cost was minimal at $1.00, suggesting these were likely routine or administrative in nature.