2231 Steiner St, San Francisco, CA 94115

The property at 2231 Steiner Street is a two-unit, two-story multi-family residential building located in Pacific Heights, constructed in 1900 and currently owned by Ben Harris Lyon. The building underwent significant transformations starting in 2020, when the owner sought to legalize an unauthorized unit as an ADU (Accessory Dwelling Unit) through the State-Mandated ADU Program, which included approximately 45.5 cubic yards of excavation and horizontal expansion. This project initiated a series of improvements, including comprehensive renovations to the second and third floors ($160,000), the installation of a new fire sprinkler system ($11,610), and structural modifications including a new steel beam and foundation work ($22,000).

Most recently, in 2023, plumbing work was completed to connect various kitchen and bathroom fixtures, and a new fire sprinkler monitoring system was installed. The building's safety features were significantly upgraded during this period, with the installation of fire alarms, smoke detectors, and monitoring equipment. Historically, there were enforcement cases related to both illegal unit conversion and unauthorized short-term rental activity, though these issues appear to have been resolved through the legalization process.

The property has also maintained compliance with safety and building codes through various permits, including electrical rewiring of the ADU area and the addition of a new 200-amp service. Record indicates three separate instances of abandoned vehicle reports in 2019 near the property, and one report of waste in the vicinity, though these are not directly related to the property's condition or management. The renovation timeline shows a systematic approach to upgrading the building, with attention to both living space improvements and safety compliance, though the multiple permits and revisions suggest a complex renovation process. The property has transitioned from non-compliance issues to a legally permitted two-unit configuration with modern safety systems, though some plumbing permits remain expired from 2021 and 2022, which might require verification of current status.