OSM → Rhino · AutoCAD

Any location. One file. Ready in two minutes.

SiteGrab generates fully aligned Rhino site models from any location in the world — 3D massing, 2D linework, terrain, contours, and site analysis. Free.

clifton_combined.3dm — Rhino 8
A SiteGrab combined model open in Rhino: terrain surface, 3D massing and the layer panel.

Outputs

What it produces

Real geometry from real data — aligned in one coordinate system, ready to open and build on.

Combined Rhino model

3D massing, 2D linework, terrain and contours aligned in one .3dm. Open straight in Rhino 7 or 8.

Standalone outputs

A lean 3D massing model or a detailed 2D AutoCAD basemap — your choice of format, nothing you don't need.

Site analysis

Sun path arcs, shadow studies and wind diagrams generated from real climate data — in DXF or 3DM.

Workflow

How it works

Three steps, no account, no setup.

01

Draw your site

Draw a box on the interactive map, or type a location anywhere in the world.

02

Choose your outputs

Combined model, standalone formats, or a site analysis — pick what you need.

03

Download and open

Files ready in under two minutes, opening straight in Rhino or AutoCAD.

Pricing

Free vs Pro

The free tool is genuinely free — no signup, no watermark, no nag. Pro adds surveyed data and scale for people who need it.

Free

Always
£0 / forever

No signup required.

  • Combined Rhino model (estimated building heights)
  • Standalone .3dm and .dxf
  • Neighbourhood-scale areas (up to ~5km)
  • Sun path and wind analysis
  • No signup, no watermark
Open the tool →

Pro

Coming soon
£8 / month

Early-access pricing — join the waitlist to lock this in.

  • Real LiDAR building heights (surveyed, not estimated)
  • Large area exports (up to 15km)
  • LiDAR terrain surface
  • Full shadow studies (all hours, all key dates)
  • Priority generation — no cold-start wait
  • Future analyses as they're released
Join the waitlist →

Pro early access

Get early access to Pro

Real LiDAR heights, larger exports, and priority generation. Join the waitlist and lock in early-access pricing.

No spam. One email when Pro is ready — that's it.