California Survey Guide

Find a Land Surveyor in Marin County, CA

Updated for 2026 · 4 min read · Find a Surveyor

Key takeaway

Find a licensed land surveyor in Marin County CA. Verify PLS credentials, ask the right questions, and hire for BCDC shoreline specialists, steep hillside survey experience and more.

How to Find a Land Surveyor in Marin County, CA

Marin County covers Coastal hills, bay shoreline, and steep wooded canyons. Whether you need a simple residential boundary survey or complex work on a waterfront, rural, or commercial property, finding the right Professional Land Surveyor (PLS) for your situation requires more than a quick web search. The right surveyor knows this county's specific record systems, terrain challenges, and regulatory environment.

Start with License Verification

In California, only a licensed PLS can legally perform and certify a boundary survey. This is required under the California Business and Professions Code, Chapter 15, Sections 8700 to 8805. Before you hire anyone, verify their license is active through the BPELSG license lookup tool at bpelsg.ca.gov. Enter the surveyor's name or license number and confirm the status shows as active.

Know What Your Project Requires

Marin County's landscape is not uniform. A surveyor who does efficient work on flat agricultural parcels may not have the skills needed for BCDC shoreline specialists, steep hillside survey experience. Think carefully about what your specific property involves before choosing a surveyor.

Steep Hillside and Canyon Complexity

Much of Marin County is steeply hilly, with wooded canyons, narrow ridgelines, and limited access roads throughout Mill Valley, Fairfax, San Anselmo, and the Mt. Tamalpais watershed area. Hillside surveys here require significant field time to locate original monuments and navigate dense vegetation. Some canyon lots have original 1920s-era subdivision stakes that have been buried, removed, or moved by decades of earth movement.

Bay and Tidal Shoreline Properties

The eastern portion of Marin County fronts San Francisco Bay and Richardson Bay. Properties in Sausalito, Tiburon, Belvedere, and along the Corte Madera shoreline involve tidal easements, Bay Conservation and Development Commission (BCDC) jurisdiction, and historic bay fill boundaries. These coastal surveys require knowledge of public trust doctrine, State Lands Commission records, and BCDC's 100-foot shoreline band regulations.

Questions to Ask Before Hiring

  • Are you licensed as a PLS in California, and can I have your license number?
  • How many surveys have you completed in Marin County in the past two years?
  • Have you worked on bay shoreline properties under BCDC jurisdiction?
  • What records will you research before fieldwork begins?
  • How long will this project take from start to delivery of final documents?
  • What does your quote include, and what could add to the cost?

Using the Marin County Assessor-Recorder's Office Records

Before contacting surveyors, pull your property's assessor parcel number (APN) from the Marin County Assessor-Recorder's Office at https://www.marincounty.org/depts/ar. Providing the APN when you request quotes allows surveyors to review existing records before giving an estimate, which makes their quotes more accurate and saves everyone time.

Find Qualified Surveyors in Our Directory

Our land surveyor directory connects property owners in Marin County with licensed PLS professionals who know the area. Search by location and project type to find surveyors with the right experience for your project. Start your search today and compare qualified professionals serving Marin County.

Find a Surveyor

Browse Marin County Surveyors

Find licensed land surveyors serving Marin County, California. Compare firms, check specialties, and contact directly.

16 licensed surveyors listed
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Frequently Asked Questions

How do I verify a land surveyor's license in California?

Go to bpelsg.ca.gov and use the license lookup tool. Search by name or license number to confirm the surveyor holds an active Professional Land Surveyor (PLS) license issued by the California Board for Professional Engineers, Land Surveyors, and Geologists.

Have you worked on bay shoreline properties under BCDC jurisdiction?

Much of Marin County is steeply hilly, with wooded canyons, narrow ridgelines, and limited access roads throughout Mill Valley, Fairfax, San Anselmo, and the Mt. Tamalpais watershed area. Hillside surveys here require significant field time to locate original monuments and navigate dense vegetation. Some canyon lots have original 1920s-era subdivision stakes that have been buried, removed, or moved by decades of earth movement. This background knowledge directly affects the quality of work you receive, so ask explicitly before hiring.

How long does a land survey take in Marin County?

Field work for a residential boundary survey typically takes one to two days. Office research and preparing the final plat or Record of Survey add another one to three weeks. Larger rural parcels and complex research jobs take longer. Plan for three to six weeks from first contact to final documents for most projects.