AI Floor Plan for Revit DWG underlay, free

Describe a layout and the AI draws it as a DWG floor plan, which you link into a Revit floor plan view and trace with Revit walls, doors and rooms. It is a quick way to test a room arrangement, with checked clearances and dimensions, before you start modelling.

Free. Use your own Anthropic or OpenAI key.

Also from Innerscene: Circadian Lab, a free lighting calculator for room illuminance, melanopic EML, and glare.

Need the whole building as a BIM model? The AI can also build IFC buildings with storeys, walls, doors, windows, rooms and lights.

An example drawing made with AI

Download the DWG

Watch how it works

How it works

  1. 1. Describe it or add a photoType what you want in plain words, with sizes if you know them, or add a photo as a reference. Describe an object or a person.
  2. 2. The AI builds and checks itThe AI writes an OpenSCAD program for an object, or sets up the character generator for a person. It looks at six rendered views of the result and fixes what is wrong, up to five builds per message.
  3. 3. Refine and exportThe model opens in the viewer at real size. Ask for changes in the chat, move the sliders, then download it or pick a format from the Export menu.

Why make it with AI here

  • Walls are drawn from centrelines at real thickness, so walls placed with Pick Lines land on the right lines.
  • Room names and areas on the plan give you a target to compare with Revit's own room areas.
  • Furniture blocks show the intended arrangement while you place Revit families.

Prompts to try

Click one to open it in the AI panel, then change the sizes to suit.

Bringing the plan into Revit

  1. Save the DWG from the viewer to your project folder.
  2. In a Revit floor plan view, choose Insert > Link CAD (or Import CAD) and set Import Units to millimetres.
  3. Draw walls with the Pick Lines option over the A-WALL lines, then add doors, windows and rooms.
  4. Unload or remove the link when the model is done.

No .rvt file or Revit families are produced. The DWG is a 2D plan for an underlay, and the Revit walls, doors and rooms are made by you in Revit.

Best export formats: DWG, DXF, PDF (vector)

Open Revit Floor Plan files in the free Revit Floor Plan viewer

Good to know

Nothing arrives as native Revit elements; walls, doors and rooms are modelled over the underlay. The plan is one storey, with no columns, stairs or levels.

Cost and privacy

You use your own Anthropic or OpenAI API key. It is stored only in your browser and sent only to that provider, which bills you directly: a model typically costs $0.05 to $0.30 at Standard quality and up to about $1 at Detailed, and Innerscene charges nothing. Your key and prompts are not sent to Innerscene; we record anonymous usage statistics such as the steps used, the model chosen, token counts, a cost estimate and whether a model was made.

How to get an Anthropic or OpenAI API key

Read the full guide: API keys, refining and exporting

Questions

▶Does it make an RVT file?
No. It makes a DWG floor plan. Bring it into Revit with Insert > Link CAD or Import CAD and trace it.
▶Should I link or import the DWG?
Link CAD keeps the file separate and easy to remove after tracing. Import CAD embeds it in the project, which helps when you send the model to someone without the DWG.
▶Will the units come in correctly?
The DWG is in millimetres. Set Import Units to millimetres in the Link CAD dialog so a 9 m wall measures 9000 mm in Revit.
▶Can Revit use the furniture blocks?
They come in as linework in the linked DWG, which works as a guide. Place Revit furniture families over them for a working model.

What it can make

Floor plans and layouts

Molecules, proteins and crystals

Make a model for any format

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