Parcel Maps & Final Maps: Expert Subdivision Mapping

Navigation the Subdivision Map Act with Precision

Dividing land in California is a complex legal and technical process governed by the Subdivision Map Act. Whether you are a homeowner looking to perform a "Lot Split" or a developer creating a new residential community, Cardinal Land Surveying provides the professional expertise to move your project from a tentative concept to a recorded Final Map.

We act as your technical liaison between your design team and the County Surveyor’s office, ensuring every map is accurate, compliant, and ready for public record.

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What is the Difference Between a Parcel Map and a Final Map?

In California, the type of map required depends on the number of lots you are creating:

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Parcel Maps

Typically required for "minor subdivisions" resulting in four or fewer lots. This is the standard path for most small residential lot splits.

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Final Maps

Required for "major subdivisions" resulting in five or more lots. This process involves more extensive public improvements and rigorous municipal review.

Our Mapping & Subdivision Process

We guide your project through the critical milestones required by local planning departments in Martinez, Fairfield, Napa, and beyond:

Tentative Map Preparation

We create the initial map used by planning commissions to review your project's layout, topography, and proposed infrastructure.

Boundary Resolution

Our field crews perform an exhaustive boundary survey to ensure the exterior lines of your subdivision are legally sound.

Map Technical Processing

We prepare the formal Parcel or Final Map, including all required certificates, easements, and surveyor's statements.

Agency Coordination

We manage the "Map Check" process, working directly with City and County Surveyors to address comments and secure technical approval.

Monuments & Recordation

We set the physical monuments (property corners) and coordinate the final filing of the map with the County Recorder.

Specialized Land Entitlement Services

Beyond basic subdivisions, we provide the technical mapping required for:

Lot Line Adjustments (LLA)

Rearranging the boundary lines between two or more existing parcels without creating new lots.

Condominium Plans

Detailed vertical and horizontal mapping for residential or commercial condo developments.

Certificate of Compliance

Verifying that an existing parcel was legally created in accordance with the Map Act.

Easement Dedications

Mapping specific portions of land for utilities, access, or public use.

Local Expertise in North bay & East Bay Jurisdictions

Every jurisdiction has unique "local ordinances" that affect how maps are processed. Cardinal Land Surveying has a proven track record of successful filings in:

  • Solano County

    Following the specific standards of Fairfield, Vacaville, and Vallejo.

  • Contra Costa County

    Navigating the rigorous requirements of the County Surveyor in Martinez.

  • North Bay

    Specialized mapping for rural and urban Sonoma and Napa County properties.

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Frequently Asked Questions

  • How long does it take to record a Parcel Map?

    While the survey and mapping can be done relatively quickly, the local agency review process typically takes 6 to 12 months depending on the complexity of the project and the city's backlog.

  • Do I need an attorney for a lot split?

    While not always required, we highly recommend working with a land-use professional. As your surveyor, we handle the technical and legal description side of the Map Act, but a consultant can help with the planning and zoning hurdles.