Turn a floor plan into a 3D model and room pictures to show a client

🧰 Before you start

• ChatGPT Pro or Business Premium with a dot set up
• A floor plan with measurements (CAD export, PDF or a clear image)
• 3-5 style reference pictures (colours, materials, furniture you like)
• Optional: Blender installed if you want to edit the model yourself

🪜 Steps (tick as you go)

1. ☐
   1. Prepare the floor plan

   Export the plan as a PDF or image with room names and measurements visible. Mark doors, windows and ceiling height if you know it.

2. ☐
   2. Collect style pictures

   Pick 3-5 photos that show the look you want: wall colours, flooring, furniture style, lighting.

3. ☐
   3. Give your dot the job

   Open your dot in ChatGPT, attach the plan and pictures, and paste the 'Floor plan to 3D' prompt below.

4. ☐
   4. Check the model before the pictures

   Ask it for a top-down view first. Check that walls, doors and windows match your plan before it spends time on styling.

5. ☐
   5. Let it choose angles, then pick the best

   The dot picks camera angles and makes the room pictures. Keep the strongest 4-6 and ask for changes in plain words ('warmer lights', 'swap the sofa for a lighter one').

6. ☐
   6. Get a link the client can explore

   Ask it to turn the model into a web page (it can use three.js, a free tool for 3D in the browser) that you can send as a link or file.

7. ☐
   7. Optional: save it as a skillOptional extra

   Ask your dot to save these steps as a skill called 'floor plan to 3D', so next time you only attach a new plan and pictures.

💬 Prompts to copy

I'm an interior designer preparing a proposal for [client / project name].
Attached: the floor plan for [type of space, e.g. a 3-bedroom flat] with measurements, and [number] style reference pictures.
1. Build a 3D model of the space in Blender from the plan, keeping the real measurements, doors and windows. Show me a top-down view first and wait for my OK.
2. Then style it to match the reference pictures: [colours, materials, furniture style, lighting mood].
3. Choose 6 camera angles that show each main room well and render a picture from each.
4. Finally, export an interactive web page (three.js) where the client can walk through or rotate the model.
Tell me anything in the plan you couldn't read or had to guess. Save all files in a folder called [project name].

Here is my feedback on the pictures: [e.g. picture 2: warmer lighting; living room: lighter sofa, add a rug; kitchen: matt black handles]. Update only what I mention, keep everything else the same, and re-render the affected pictures and the web page.

🔗 Links

• 33.Shan on Threads (source): https://www.threads.com/@33.shan.design/post/DeW7ChCE8qR
• Made with Dots: the same designer's 3D walkthrough presentation: https://madewithdots.com/projects/threads-Ded8kDxEhaB
• ChatGPT Learn: dots: https://learn.chatgpt.com/docs/dots
• Blender (free 3D software): https://www.blender.org/download/

From https://usecasy.com/use-case/dots-floor-plan-to-3d-rooms/ · Guide checked 20 October 2026 · Prices are rough and shown in USD unless stated (MYR where relevant).