Parcel Maps in Crockett, CA

Crockett's early-1900s housing climbs the hillside on small terraced lots, and the terraces are held by generations of retaining walls — many of which were built to convenient lines rather than record boundaries. When a wall sits a few feet onto the neighboring lot, or a stairway and yard have been used across a line for decades, the cleanest permanent fix is often a lot line adjustment under the Subdivision Map Act: the boundary moves to match the wall, both owners sign, and the encroachment simply ceases to exist. We handle these regularly on steep terrain, and Crockett is exactly the kind of place they belong. Because the town is unincorporated, the adjustment is approved by Contra Costa County and the instruments record with the County Recorder in Martinez, with map review by the County Surveyor's office.

The surveying itself is the hard part here. Crockett's streets are steep and narrow, lots are stacked above one another, and the critical evidence — wall faces, wall tops, fence lines, building corners — is often on slopes that are slow and awkward to occupy with a conventional instrument. Our Trimble terrestrial laser scanner changes that equation: from a handful of setups we capture millions of survey-grade points across the terraces, documenting every wall, step, and structure in one mobilization. That single dataset serves the boundary resolution, the encroachment exhibits, and a topographic base if you are also planning an addition or wall replacement. Where existing monuments would be disturbed by construction, we perpetuate them as Business and Professions Code §8771 requires.

We start with feasibility: confirming the parcels are legal lots, checking county standards the adjusted lots must still meet, and mapping exactly where the walls sit relative to record lines. From there we prepare the legal descriptions and plats, shepherd the county review, and set monuments on the new line so the resolution holds on the ground — not just in the record.