3131 Noriega St, San Francisco, CA 94122

The two-unit residential building at 3131 Noriega St, located in San Francisco's Outer Sunset neighborhood, is a two-story flats and duplex structure owned by Lam Churk Shuen & Helen T P and constructed in 1955. The building's documented history shows some significant renovations, most notably in 1984 when a family room and bathroom were added to the basement through a completed building permit, representing the only substantial modification on record.

An earlier building permit application from April 1983 was submitted but subsequently cancelled, though the reason for this cancellation is not specified in the records. The property's maintenance history includes a single street cleaning incident in March 2014, which involved abandoned loose garbage and was addressed by Recology.

This 311 call was successfully resolved with city services handling the cleanup, though it occurred several years ago and does not necessarily indicate any ongoing sanitation issues. The available records show relatively sparse documented activity for the property since the 1984 renovations, with no reported safety incidents or major maintenance concerns in recent years.