Our tool
Common Unity LandScan v1.0 · Windows + Mac
Our own build of the workflow, made so a non-expert can run it. Point it at a folder of LiDAR tiles, press Start processing, and it reads the tiles, finds the ground, builds the terrain model, merges the cloud and renders the four views — with a progress bar, plain-language errors, a tool check, and a report you can open in any browser. Nothing else to install: no QGIS, no SAGA, no plugins. USGS tiles already carry ground classes and LandScan uses them; other tiles go through its built-in ground filter.
Windows 10/11 or macOS, 8 GB RAM. Open source, MIT. Built on the Relief Visualization Toolbox algorithms (ZRC SAZU) and the LiDARch workflow by M. Carrero-Pazos — whose original Windows app is at github.com/MCarreroPazos/LiDARch. Optional: point LandScan at LAStools to classify unclassified tiles with lasground.
Get free data first
USGS 3D Elevation Program
The federal 3DEP program publishes LiDAR for most of the country, Florida included, at no cost. Draw a box around the parcel, choose Elevation Source Data (3DEP) – Lidar Point Cloud (LPC), and download the LAZ tiles into one folder. That folder is what LandScan takes as input.
Tiles are usually 1 km squares of 50–300 MB each. A 100-acre parcel is typically one to four tiles. Keep the LAZ files together; the app handles the rest.