Claude Code

Turn a Floor Plan Into a 3D House You Can Walk Through With Claude

One prompt makes Claude read your floor plan, work out every room and build a walkable 3D house in your browser. The prompt, the steps, and the catches

Alex ChenAlex Chen@nocodealex · 50,000+ follow on Instagram
2min read
1prompts to copy
4numbered steps
4sections

In one test, Claude Opus 5.5 was given a public-domain floor plan with the room sizes painted out and built a walkable 3D house in the browser in 34 minutes. Ten of its twelve room sides landed within an inch and a half of the real drawing. It missed two.

Here's the prompt, the steps, and what to check.

What Claude does

  • Reads the outside walls and the scale bar on your floor plan.
  • Works out the size of every room from those walls.
  • Builds a 3D house in the browser that you walk through.
  • Add photos and references and it can furnish the rooms to match.

Free, for your email

Get the full setup steps + the copy-paste setup prompt

The rest of this guide (3 more sections, 1 copy-paste prompt) opens right here. The setup prompt, one paste into Claude that sets it all up, comes by email only. Use your real address.

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