Parcel Maps in Concord, CA

Concord's broad postwar tracts are, on paper, a promising landscape for small-lot divisions: generous lots, existing utilities, and flat ground. Some owners ask us about SB 9 urban lot splits, and our advice is consistent — the statute is narrower than the headlines suggest. Eligibility turns on zoning, owner-occupancy commitments, prior use of the parcel, and overlay constraints, and Concord adds one that most Bay Area cities do not: the Concord fault crosses the city and carries a state Alquist-Priolo Earthquake Fault Zone. A proposed lot split inside that zone faces structure-setback rules that can make a new buildable lot impossible. We screen for the AP zone, zoning minimums, and access before any mapping begins, so the feasibility answer arrives before the mapping invoice does.

Whether a division proceeds under SB 9 or as a conventional four-or-fewer-lot division, the Subdivision Map Act governs the mechanics: tentative parcel map, conditions of approval, final parcel map, and recordation. All Concord maps are examined by the Contra Costa County Surveyor and recorded with the Contra Costa County Recorder in Martinez, and we manage that plan-check and recording sequence as part of every engagement. On the commercial side, the aging retail and industrial stock along Concord's corridors generates steady lot line adjustment and merger work — reconfiguring parcels so a redevelopment site matches its financing and entitlement boundaries. And at the former Concord Naval Weapons Station, one of the Bay Area's largest redevelopment sites, adjacent landowners are increasingly attentive to how their own parcel boundaries relate to land that will be remapped over the coming decades; we help them get their lines documented and defensible now.

Our Trimble terrestrial laser scanner lets us deliver the boundary survey and a survey-grade topographic base in a single mobilization — millions of points covering grades, structures, driveways, and utilities — so the site plan for a split or ADU-driven adjustment is built on the same data as the parcel map. Where monuments will be disturbed, we perpetuate them under Business & Professions Code §8771.