633-637 Lyon St, San Francisco, CA 94117

The three-unit, three-story multi-family residential building at 633-637 Lyon Street in Park North, built in 1904, has undergone significant improvements and maintenance over the past several years. Between 2017-2018, the property underwent substantial renovations including a kitchen remodel with load-bearing wall modification, basement strengthening, and comprehensive updates to its mechanical systems including the installation of a high-efficiency furnace, tankless water heater, and full electrical rewiring.

The building received a new roof in 2017 at a cost of $31,500, and the plumbing systems were updated with various improvements including bathroom fixture relocations and kitchen corrections. Three routine safety inspections were conducted between 2001-2017, all marked as "Not Active." More recently, in 2023-2024, there have been several 311 calls regarding street cleaning and encampment issues near the property, with the most recent reports relating to encampments in May 2024, though these appear to be street-related rather than directly impacting the building itself.

A 2019 permit for reroofing work was completed by Tom Lee Roofing, replacing existing shingles with new composition shingles. The building's records indicate regular maintenance and upgrading of systems, with no recorded building code violations or serious maintenance issues in recent years, suggesting responsible property management and adherence to safety requirements.