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Seattle, Washington
Land Surveying in Seattle, WA
Boundary, topographic, and construction staking surveys that put the design on the ground accurately the first time. Seattle and the surrounding WA area is covered on a project basis through our Seattle, WA regional hub.
- Dispatched from
- Seattle, WA regional hub · project-based staffing
- Lead time
- Scheduled by phone or proposal; lead time confirmed when the scope is set
- Laboratory
- Sugar Land, TX laboratory under chain of custody, or a mobile laboratory for large projects
- Reporting
- Reviewed and issued under a documented quality system; formatted for owner, engineer, and building-official review
- Serving
- Seattle and the surrounding WA area — Spokane, Tacoma, Vancouver
- Coverage
- Washington statewide · 27 regional hubs
- Technicians
- ACI- and NICET-certified field staff; licensed professionals in Washington
- Call us
- (346) 420-5425
Scope
Survey services in Seattle
- Boundary and title surveys for acquisition and permitting
- Topographic surveys for civil design
- Construction staking: building corners, utilities, paving, and grades
- As-built surveys for closeout and conveyance
Full scope, standards list, and pricing basis: Land Surveying.
Local conditions
Survey conditions in Seattle
Seattle's combination of steep topography, tidal shorelines, and frequent rainfall creates survey conditions that demand precision from the first site visit. Hillside residential developments in neighborhoods like Capitol Hill or Beacon Hill, mixed-use infill along corridors served by light rail, and waterfront commercial work near Elliott Bay all share one challenge: translating a design into physical control points on ground that rarely cooperates. Grades change sharply, property boundaries often follow historic plat lines that predate modern coordinate systems, and regional weather can close windows for fieldwork quickly. Our Seattle regional hub dispatches experienced survey crews for boundary surveys, topographic surveys, and construction staking across the greater metro area. Schedules are coordinated on a project basis through that hub, so coverage fits your construction timeline rather than a generic availability calendar. Accurate control established early reduces costly rework and keeps downstream trades on schedule.
Western Washington's glacially derived soils — ranging from dense glacial till on upland sites to loose fill and organic deposits in low-lying or former tideflat areas — mean that even small elevation discrepancies between survey control and design intent can have meaningful consequences for grading, drainage, and foundation layout. Seattle's wet season, which extends well into spring, should factor into survey scheduling for projects where ground disturbance or concrete placement follows immediately after staking.
FAQ · Seattle
How does Seattle's hillside terrain affect the accuracy of a topographic survey, and what should I ask for in the deliverable?
Steep slopes amplify small instrument errors into larger elevation discrepancies on the ground. Request a deliverable that specifies the contour interval used, the vertical accuracy achieved, and the datum referenced — typically NAVD 88 for projects tying into regional design. For grading and drainage design on sloped sites, a 1-foot or 0.5-foot contour interval is commonly warranted. Confirm the survey crew established ground-truthed spot elevations at grade breaks, not just interpolated contours.
What permits or filings does Washington State or the City of Seattle require before a boundary survey result can be recorded?
Washington State requires that boundary surveys meeting the criteria under RCW 58.09 be prepared and stamped by a licensed Professional Land Surveyor (PLS) and filed with the King County Recorder as a Record of Survey. Specific triggering conditions — such as setting new monuments or resolving a disputed line — determine when recording is mandatory. Confirm filing requirements with the City's Department of Construction and Inspections early, as subdivision platting triggers additional review steps.
Can construction staking proceed during Seattle's rainy season, and what site conditions would delay a staking crew?
Staking can proceed in light to moderate rain; modern total stations and GNSS equipment are weather-resistant. Delays occur when site conditions make reliable stake placement or instrument setup unsafe or ineffective — saturated slopes prone to movement, active mud flow, or standing water obscuring grade references. Coordinate with the crew on access routes and whether hubs or offset stakes are more appropriate than direct grade stakes when ground conditions are unstable.
Which office covers survey in Seattle, WA?
Field work in Seattle is dispatched through the Seattle, WA regional hub. Laboratory testing is performed in Sugar Land, TX under chain of custody, or in a mobile laboratory mobilized to large Seattle projects.
Are the technicians you send to Seattle certified?
Field sampling and testing in Seattle are performed by our ACI- and NICET-certified technicians. Survey engineering and professional services are delivered with professionals licensed in Washington, coordinated under one proposal.
Hiring: we staff this work locally. Field technician openings in Seattle · all positions.
Scheduling & proposals
Need land surveying in Seattle?
Call to schedule a technician, or send project documents for a written proposal.