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    FOR LAND SURVEYORS

    LiDAR topography, ready for CAD.

    Get processed, ground-classified LiDAR contours and elevations delivered in DWG or DXF format, typically within 24 hours. Integrate existing terrain data into your projects and focus fieldwork where verification is needed.

    Check Your Site
    LiDAR contours extending past a surveyed property boundary
    Why ContourLabs

    GIS for Land Surveyors

    We're the mapping back office you didn't have to hire.

    You already know how to process LiDAR. The question is whether it's worth your office's hours.

    1. Colorized LiDAR elevation data of hilly terrain
      01

      We find the data

      We locate the best available public LiDAR for your site, usually USGS 3DEP, and check that it's good enough to use.

    2. LiDAR point cloud, terrain surface, and contour lines for one site
      02

      We process the terrain

      Ground filtering, surface building, and contour cleanup, off your desk.

    3. Contour lines and parcel boundary over satellite imagery for one site
      03

      We add site context

      The assessor parcel line and optional building footprints join your contours, delivered in your projection and datum.

    4. ContourLabs map plus Revit, SketchUp, AutoCAD, Rhino, MicroStation, and Civil 3D
      04

      You receive a DWG/DXF

      A layered DWG/DXF clearly labeled as LiDAR-derived, with the source metadata included, plus a print-ready PDF.

    1. It's office work, not field work

      Processing LiDAR eats office hours you can't bill at full rate. Send it to us and keep your staff on billable work.

    2. New revenue from past clients

      Offer topography past the line you already shot, without sending a crew back out.

    3. We're never after your client

      We don't do boundary or stamped work. We're your back office, not your competitor.

    Same public data. None of your office hours.

    Get Started
    WHERE SURVEYORS USE IT

    More coverage, no extra field days.

    LiDAR fills in the context your field work doesn't cover and your fee doesn't justify shooting.

    Supplemental topo

    Past your survey line

    Add the uphill slope and neighboring drainage so your deliverable answers the client's next question.

    Upsell past clients

    After the job is done

    Offer past clients topography outside the area you already surveyed.

    Bid scoping

    Before you price the job

    See the terrain before you quote, so you know about the ravine before the crew does.

    Field planning

    Before the crew rolls

    Plan control and crew time with the ground in front of you.

    Included Site Data

    Contours, parcel boundaries and building outlines, in the same DWG

    Parcel boundaries are included with every project. Add building outlines at no extra cost. Both arrive on their own layers alongside your contours.

    Shaded LiDAR terrain surface clipped to a project corridor

    Contours from LiDAR

    Clean contours generated from LiDAR and clipped to your project area.

    • Major and minor contours
    • Elevation labels
    • Down to 1-foot intervals where the data supports it
    • 3D elevation geometry
    Parcel boundary in red over 1-foot LiDAR contours and aerial imagery

    Parcel Boundaries

    Included with every project: county parcel lines on their own layer in your DWG.

    • Included at no extra cost
    • County assessor parcel data
    • APN / parcel number lookup
    • Or upload your own boundary

    Assessor parcel lines are approximate and aren't a boundary survey.

    1-foot LiDAR contours over aerial imagery with a site area highlighted

    Building Footprints

    Add existing building footprints for free, on their own layer.

    • Free add-on when you order
    • Organized on their own layer
    • Delivered with your contours

    Footprints come from public data and may not show recent construction.

    Get Started

    Firms that send sites every month use memberships: a $500, $1,000, or $2,000 monthly map allowance starting at $425/month, and unused map credits that roll over indefinitely and never expire. Occasional users buy one-time maps from $30.

    See pricing →
    Site Assessment

    Request a Site Review

    Share your project location, scope, and timeline. We'll check LiDAR coverage and quality for the site and reply by email.

    Order your map

    Keep the field work. Hand us the office work.

    Send an address, APN, or boundary. Delivered in your projection, typically in 24 hours.

    Use one:
    Address searches use the local assessor parcel boundary
    OR
    Upload DWG or KMZ boundary file
    Enter an address to place a pin on your property
    FAQ

    Land surveyors: common questions

    Primarily USGS 3DEP airborne LiDAR, plus state and county collections where they're better. Every map ships with a Data Quality Report listing the dataset, collection year, quality level, and stated vertical accuracy.

    Yes. Tell us your projection and vertical datum when you order, and everything in the DWG arrives in that system, ready to tie into your survey.

    As supplemental, LiDAR-derived topography that isn't field-verified, with the source and collection year. The Data Quality Report included with every map gives you that information.

    Yes. Explorer is $425/month for a $500 map allowance, Professional is $800/month for a $1,000 allowance with priority turnaround, and Studio is $1,500/month for a $2,000 allowance. Unused map credits roll over indefinitely and never expire. You keep unused credits even if you cancel.

    See all questions →