Land surveyors in Washington: licensed PLS quotes and cost
Land surveyors in Washington must hold a Professional Land Surveyor (PLS) license from the Board of Registration for Professional Engineers and Land Surveyors, verifiable through the Washington Department of Licensing. Under the Survey Recording Act (RCW 58.09), a licensed surveyor must file a Record of Survey with the county auditor within 90 days of setting or re-establishing a boundary corner, so a Washington boundary survey becomes a recorded public document. A residential boundary survey typically costs $450 to $950 and takes 5 to 10 business days.
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What a PLS license means in Washington, and how to check one
Washington licenses land surveyors as Professional Land Surveyors (PLS). The credential is issued through the state Board of Registration for Professional Engineers and Land Surveyors, and it is unlawful under RCW 18.43 to practice or offer to practice land surveying in Washington without it. Determining boundaries and setting monuments is restricted work: only a licensed PLS can seal a boundary survey in the state.
You can verify any Washington surveyor yourself. The Washington Department of Licensing publishes a public license lookup at professions.dol.wa.gov, searchable by license number or by name, and the data refreshes each morning. Confirm the license is active before you hire. Ask for the number up front; a surveyor who will not give you one is telling you something.
On Surveyors.io that check is done for you. We verify the PLS license against the state record and keep a certificate of professional liability insurance on file, and a profile comes down the moment a credential lapses. You get matched only with surveyors who are licensed to do the work in Washington and insured to stand behind it.
The Washington rule that makes your survey a public record
Washington has a survey rule most states do not, and it works in a buyer's favor. Under the Survey Recording Act (RCW 58.09), when a surveyor establishes, re-establishes, or restores a boundary corner by survey, they must file a Record of Survey with the county auditor within 90 days. Your boundary survey is not just a drawing that lives in a drawer: it becomes a recorded public document tied to your parcel.
That matters for two reasons. First, it protects you later. If a corner is ever disturbed by grading, a fence crew, or a neighbor's project, the recorded Record of Survey is the reference a future surveyor uses to put it back exactly where it belongs. Second, it is a quality check on who you hire. Filing a Record of Survey correctly is licensed work, and a surveyor who does it right leaves a clean public trail. Ask your surveyor whether your job will require a Record of Survey and confirm they will file it.
The practical takeaway: in Washington, a boundary survey buys you more than a map. It buys you a monumented corner and a recorded document that the county, a title company, and any future surveyor can rely on. That is worth insisting on a licensed PLS rather than a cheaper unlicensed measurement that records nothing.
Waterfront and critical-area surveys near Puget Sound and the lakes
A lot of Washington's value is on the water, and the water comes with its own survey work. The state Shoreline Management Act (RCW 90.58) regulates "shorelands," the strip of land reaching 200 feet landward from the ordinary high water mark, along Puget Sound, the large lakes, and major rivers. If you are building, remodeling, or subdividing in that zone, the county or city almost always needs a survey that locates the ordinary high water mark and the 200-foot jurisdictional line so setbacks and buffers can be measured.
This is standard work for a Washington surveyor near the shore, but it is not standard everywhere, so hire someone who knows the local shoreline rules. Around Seattle, Bellevue, and the Puget Sound counties, a topographic and shoreline survey is often the first document a permit reviewer asks for on a waterfront lot. Describe the project when you request quotes so surveyors can scope the shoreline work up front instead of surprising you with it later.
What a land survey costs in Washington
Washington prices track the national market and depend on lot size, terrain, and how many corners have to be recovered or reset. These are typical ranges, not quotes. Steep or wooded parcels and waterfront lots sit at the higher end.
| Survey type | Typical cost | What you get |
|---|---|---|
| Boundary survey (suburban lot) | $450 to $950 | Corners monumented, sealed drawing, Record of Survey filed where required |
| Mortgage / location survey | $200 to $700 | Improvements plotted against the deed lines for a lender; corners not set |
| Elevation certificate | $170 to $800 | FEMA form for flood insurance and floodplain permits |
| Topographic / shoreline survey | $900 to $3,500 | Ground contours, features, and the OHWM / 200-ft line for waterfront and grading permits |
| ALTA/NSPS survey | $2,500 and up | Full commercial survey for a purchase or refinance |
Ranges are typical US market figures for 2026 and are shown for planning. Your quote depends on the specific parcel. Compare up to three real quotes rather than budgeting from a single number.
Washington metros we match surveyors in
We match license-verified surveyors across Washington, from the Puget Sound metros to the eastern half of the state. The largest markets:
- Seattle and the greater Puget Sound: Bellevue, Renton, Kent, Everett, and the King and Snohomish County suburbs, where shoreline and critical-area surveys are common.
- Tacoma and Pierce County, including waterfront and hillside lots along the Sound.
- Spokane and Spokane Valley in eastern Washington, a different market with larger and more rural parcels.
- Vancouver in Clark County, across the river from Portland, where buyers often coordinate surveys with Oregon-side deals.
- Olympia, the state capital, plus Thurston County and the smaller South Sound cities.
Washington land survey questions
How much does a land survey cost in Washington?
A residential boundary survey in Washington typically costs $450 to $950 and takes 5 to 10 business days. A lighter mortgage or location survey runs $200 to $700. Waterfront, steep, or wooded lots and parcels with missing corner monuments cost more. Compare three quotes rather than budgeting from one number.
Do I need a licensed surveyor in Washington?
Yes. Under RCW 18.43 only a licensed Professional Land Surveyor can determine boundaries, set monuments, and seal a survey in Washington. Verify any surveyor at the Department of Licensing lookup before you hire. Unlicensed boundary work is unlawful and will not be accepted by a county, title company, or lender.
What is a Record of Survey in Washington?
A Record of Survey is the map a licensed surveyor files with the county auditor when they set or re-establish a boundary corner. The Survey Recording Act (RCW 58.09) requires it within 90 days. It makes your boundary survey a recorded public document, so the corners can be found and relied on again in the future.
Do I need a survey to buy a house in Washington?
Not always by law, but often in practice. Lenders and title companies may accept an existing survey plus an affidavit, or may require a new one, especially on rural, waterfront, or unplatted parcels. A cash buyer is never required to get one but many still do, because a boundary problem found after closing becomes the buyer's problem alone.
Who verifies a surveyor's license in Washington?
The Washington Department of Licensing publishes the public license lookup for the Board of Registration for Professional Engineers and Land Surveyors. Search by name or license number and confirm the license is active. On Surveyors.io we run that check for you and keep an insurance certificate on file for every matched surveyor.
Do I need a survey for a waterfront property in Washington?
Usually. The Shoreline Management Act regulates land within 200 feet of the ordinary high water mark on Puget Sound, the large lakes, and major rivers. Building, remodeling, or subdividing there generally requires a survey locating the ordinary high water mark and the jurisdictional line so setbacks and buffers can be measured.
Three quotes beat six voicemails
Describe the parcel once. Up to 3 license-verified, insured surveyors covering your county quote it, usually within 24 hours. Posting is free for clients and quotes are never marked up.