New Hampshire Survey Guide

New Hampshire Land Surveying Law: Licensure, Local Approvals, and Recorded Plans

Updated September 2, 2026 · 3 min read · State Surveying Laws

Quick answer

New Hampshire licenses land surveyors through RSA 310-A, records deeds and plans at county registries, and leaves many subdivision and building details to municipalities. There is no one statewide “survey required” trigger. Identify the boundary, recording, planning, or shoreland decision before requesting a scope.

Three levels of government can touch one project

The state licenses the surveyor under RSA 310-A. The county registry of deeds maintains deeds and recorded plans. The town or city applies local subdivision, zoning, setback, and building rules under authority that includes RSA 674.

That division explains why a tax map or a call to one office rarely answers everything. A boundary survey can locate the parcel; it does not itself approve a subdivision, decide zoning compliance, or resolve title.

The county registry and municipal file serve different purposes

Use the New Hampshire county-registry directory to request the current deed, earlier deeds cited in the description, recorded subdivision plans, easements, and boundary plans. Ask the municipality for the tax card, tax map, zoning district, approved site or subdivision plans, and local permit records. Treat the tax map as an index rather than a field boundary.

Shoreland work needs a more precise question

New Hampshire's Shoreland Water Quality Protection Act, RSA 483-B, creates state requirements for qualifying shoreland. A lakefront owner should tell the surveyor whether the need concerns a side boundary, reference line, setback, permit plan, septic design, or title question. Those are not interchangeable assignments.

When a licensed survey is the sound next step

Because RSA 310-A reserves professional boundary work to licensed surveyors while RSA 674 gives municipalities planning and zoning authority, use the following triggers to decide which office and professional to call.

  • A fence, addition, drive, or septic feature will be close to a line or setback.
  • A deed description and occupation on the ground do not agree.
  • A lot line is being adjusted or land is being subdivided.
  • A lender, title company, attorney, or municipality names a survey deliverable.
  • A neighbor disagreement requires documented boundary evidence.

Write the scope around the approval path

The state licensing law in RSA 310-A, local authority in RSA 674, and the shoreland rules in RSA 483-B can place different parts of one project with different reviewers. For a subdivision or lot-line adjustment, ask the planning office what plans, signatures, and approvals are required before hiring. For a fence, state the line and marking needed. For a shoreland permit, attach the agency or municipal checklist. For a dispute, ask for the relevant line and improvements to be shown, while leaving legal rights to counsel.

Verify the professional

Use the New Hampshire license verification service and confirm the person responsible for the final work. Use the New Hampshire land surveyor directory to locate firms, then compare the records, marking, plan, filing, and approval work included in each estimate.

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Frequently Asked Questions

Who regulates land surveyors in New Hampshire?

The New Hampshire Office of Professional Licensure and Certification and its Board of Land Surveyors administer RSA 310-A's licensing framework.

Are New Hampshire land records kept by towns or counties?

Tax and zoning information is often municipal, but deeds and recorded plans are maintained through the county registries of deeds. A useful survey request may require records from both levels.

Does New Hampshire require a survey before every fence or sale?

There is no statewide rule requiring a new survey for every ordinary fence or home sale. A municipality, lender, title issue, subdivision, uncertain boundary, or project near protected shoreland can still make professional survey work necessary.