Condo Conversions in Martinez, CA

Martinez is the county seat, which gives conversion work here an unusual practical advantage: the Contra Costa County Recorder and the County Surveyor sit in offices downtown, so the map checking, plan review, and recording steps that close out a condominium conversion all happen within a few blocks of the property itself. A conversion converts a single building on a single lot into separately conveyable airspace units, and that takes two legal instruments working together — a subdivision map processed under the Subdivision Map Act, and a condominium plan prepared under the Davis-Stirling Common Interest Development Act that defines each unit, the common area, and any exclusive-use areas such as decks, parking stalls, and storage. We prepare both, and we walk them through the county offices we work with constantly.

The multi-unit stock most likely to convert in Martinez sits in and around the downtown grid — older duplexes, four-plexes, and mixed commercial-residential buildings on blocks first platted in the 1800s along the Carquinez shoreline. Buildings of that age rarely match any drawing on file, and a condominium plan drawn from assumptions invites boundary disputes between future owners. That is where our Trimble terrestrial laser scanner earns its place: one site visit captures millions of survey-grade points inside and out, and the resulting point cloud gives us as-built wall lines, floor elevations, and ceiling heights to define unit boundaries exactly as the building stands. Our laser scanning services feed the plan directly, so the recorded geometry matches the real structure.

Because downtown Martinez parcels descend from some of the county's oldest plats, the underlying boundary work deserves care too. We research the original block and lot lines, recover surviving monuments, and protect them as Business and Professions Code §8771 requires before any mapping records. Each city also regulates conversions differently — tenant noticing, physical standards, and application requirements vary — so we coordinate our mapping timeline with the City of Martinez's process from the start.