How to Generate a Floor Plan From a Text Prompt
Generating a floor plan from a text prompt is the fastest way to get from an idea to a workable layout. This tutorial walks through the full flow in Planix — writing the brief, reading the result, and exporting it to the formats your CAD or BIM workflow expects.
Step 1 — Write a specific brief
The quality of your first layout depends almost entirely on the brief. A vague prompt ("a nice 3-bedroom house") forces the engine to guess; a specific one gets you close on the first try. Include:
- Plot size and units — e.g. "30x40 ft" or "9.1 x 12.2 m".
- Floors — "G+1" (ground plus one), "G+2", and so on.
- Room program — bedrooms, bathrooms, kitchen, living, plus special rooms.
- Orientation / entrance — "north-facing entrance", "south road".
- Special spaces — car parking, pooja room, store, balcony, terrace.
A strong example:
"3BHK G+1 house on a 30x40 ft north-facing plot, car parking, pooja room, two bathrooms, balcony on the first floor, India."
Step 2 — Pick your code region
Before generating, select the country / code region for the project. This shapes the preliminary structural defaults, the validation summary, and the engineering context. Structural framing for a high-seismic region differs from a low-seismic one — choosing the right region up front makes the preliminary output far more relevant.
Step 3 — Generate and read the output
In a few seconds you will get three linked artifacts:
- A 2D floor plan — check the room program is complete and that every room connects to circulation (a hallway, landing, or the living space).
- A 3D model — orbit it to sanity-check massing, stairs, and the entrance.
- A preliminary structural layout — columns, beams, and slabs, with a readiness summary.
Read the readiness and review notes that accompany the plan. Planix flags where a layout still needs design attention rather than presenting everything as finished — that honesty is the point.
Step 4 — Iterate with follow-up prompts
You rarely keep the first result verbatim. Refine with natural follow-ups: "make the kitchen larger and move the staircase to the rear", or "add a study on the ground floor". Each iteration re-runs the layout while respecting your constraints.
Step 5 — Export to your workflow
When a direction looks right, export it:
- DXF — open in AutoCAD or any CAD tool to continue detailing.
- IFC — bring the model into a BIM environment.
- PDF — share a clean drawing set with a client or contractor.
- OBJ / STL — use the 3D geometry elsewhere.
- Engineering workbook + BOQ — get a preliminary quantity and cost picture.
Before you build: review
Everything above is a fast, structured starting point, not a sign-off. Have a licensed architect and structural engineer review the layout, structure, and quantities, and confirm compliance with your local authority before construction or permitting. Used this way — machine speed for the draft, human judgment for the sign-off — a text-to-plan workflow saves hours without cutting corners.
Ready to try your own brief? Open the workspace and paste in the example above to see the full 2D, 3D, and engineering pass.
Frequently asked questions
How do I generate a floor plan from text?
Describe the building in plain language — number of bedrooms, plot size, orientation, and must-have rooms — then let the generator place the layout. In Planix you type the brief in the workspace, pick the code region, and receive a 2D plan, 3D model, and preliminary structure in one pass.
What makes a good floor-plan prompt?
Include the plot dimensions and units, the number of floors (e.g. G+1), the room program, orientation or entrance direction, and any special spaces (parking, pooja, store, balcony). The more specific the brief, the closer the first layout will be.
Can I export the generated plan to CAD?
Yes. Planix exports to DXF for CAD, IFC for BIM, PDF for sharing, and OBJ/STL for 3D — plus engineering workbooks and BOQ takeoffs. Export output is preliminary and should be reviewed by a licensed professional before construction use.