Condo Conversions in Vallejo, CA

Vallejo has two conversion stories, and both are real. The first is in the Victorian districts downtown and on St. Vincent's Hill, where large 19th-century houses long ago divided into flats can be converted to condominiums — a path that lets longtime owners sell units individually and gives buyers an ownership entry point in one of the Bay Area's more affordable historic markets. The second is Mare Island, the West Coast's first naval shipyard and now a major adaptive-reuse district, where dry docks, machine shops, and officers' quarters are being repurposed and where condominium mapping can divide rehabilitated buildings among multiple owners. Both run through the Subdivision Map Act and the Davis-Stirling Act: a map creates the condominium project, and a condominium plan defines the units, common area, and exclusive-use areas.

Vallejo is in Solano County, so every map and condominium plan records with the Solano County Recorder in Fairfield after review by the Solano County Surveyor — a process we run routinely and schedule into each project. The surveying challenge that sets Vallejo apart is documentation. Victorian buildings converted to flats decades ago rarely have drawings that reflect their current partitioning, and on Mare Island the original shipyard drawings are famously lost or incomplete. Our Trimble terrestrial laser scanner was built for exactly this: one visit captures a building's full interior and exterior in millions of survey-grade points, and we produce the as-built floor plans and the condominium plan from the same point cloud. For a shipyard-era machine shop or an 1890s house alike, recorded unit boundaries come from measured reality, not reconstruction from fragments.

Site conditions matter too. Vallejo's waterfront includes filled land with mapped liquefaction zones under the Seismic Hazards Mapping Act, which affects geotechnical review and disclosure for waterfront and Mare Island projects — we identify zone status during research so it never surprises the team at sale. On the boundary side, we recover monuments from Vallejo's early plats and preserve them under Business and Professions Code §8771 before recording. Vallejo regulates conversions through its own local application and noticing requirements, which we confirm with city staff at kickoff, and our laser scanning deliverables serve the architects and engineers working the same rehabilitation.