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How to Create an Interactive 3D House Model from a Floor Plan Using AI

Turn a dimensionless realtor floor plan into an interactive 3D walkthrough. Claude finds a known measurement in your house documents, scales the plan, builds movable rooms, and adds furniture from purchase receipts.

How to Create an Interactive 3D House Model from a Floor Plan Using AI

Source episode · 08:30

How I AI: Felix Rieseberg's Claude Workflows for 3D House Design and a $20 Hardware Buddy

with Claire Vo

Felix asks Claude to infer floor-plan units from a permit, then lets it build a 3D planner and populate the rooms with furniture found in his email receipts.

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Before you start

What you need

  • A readable floor-plan image
  • A permit, disclosure, or other document with at least one known measurement
  • Claude Cowork with access to the document folder
  • Optional Gmail access for furniture receipts

What you’ll make

An interactive 3D house model with scaled rooms, movable furniture, and optional models of items you already own.

Tools used

Step by step

The workflow

Follow the sequence once, then adapt the prompts, checks, and handoffs to your own setup.

4 steps

Step01

Consolidate Documents and Find Missing Dimensions

Put the floor plan, disclosures, permits, and related house documents in one folder. Ask Claude to find a known measurement, such as the garage dimensions in a permit, and use it to calculate the plan scale. Have Claude return a labeled 2D plan so you can compare it with the source before continuing.

Example prompt
This folder contains a floor plan plus permits and disclosures for the same house. Find a reliable measurement in the documents, identify where it appears on the floor plan, calculate the scale, and create a new labeled floor plan with dimensions. List the source document and measurement you used.
Step02

Generate an Interactive 2D Planner

Ask Claude to turn the scaled plan into a browser-based 2D planner. The rooms and walls should stay fixed while furniture can be added, resized, rotated, and dragged. Include a reset control so layout experiments do not damage the base plan.

Example prompt
Using the scaled floor plan, build a single-page interactive 2D furniture planner. Keep walls, doors, and room dimensions fixed. Let me add, resize, rotate, and drag furniture. Include labels, a scale indicator, and a reset-layout control.

Verify the scaled 2D outline before asking for 3D. Geometry errors are easier to spot and fix in a flat plan.

Step03

Upgrade to an Immersive 3D Walkthrough

Convert the verified outline into a navigable 3D scene. Ask Claude to extrude the walls, preserve doors and openings, and keep the furniture controls. Test several known room dimensions and make sure moving an item does not distort the house.

Example prompt
Convert the verified 2D planner into an interactive 3D walkthrough. Extrude the walls from the existing geometry, preserve every door and opening, keep furniture movable, and add both an overhead view and a first-person navigation mode.
Step04

Personalize with Your Actual Furniture

Connect Gmail and ask Claude to find furniture receipts. Use each product name or model number to retrieve dimensions, then add a labeled object at the correct scale. Review the source and measurements before placing each item in the room.

Example prompt
Search my connected Gmail for furniture purchase receipts. For each item, capture the product name, model, source email, and dimensions. If the receipt lacks dimensions, use the product model to find the manufacturer specifications. Add each verified item to the 3D planner at the correct scale and label any estimated measurement.

What good looks like

  • At least one room dimension matches the source documents.
  • Walls, doors, and openings line up with the original floor plan.
  • Furniture can be moved without changing the room geometry.
  • Any receipt-derived furniture uses verified product dimensions.

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After the steps

Runbook notes

How to recover when the loop fails and where human judgment helps.

Recover

If it goes sideways

Claude cannot infer a reliable scale
Supply one confirmed wall, room, or garage measurement and identify exactly where it appears on the plan. Regenerate the scaled 2D plan before building the 3D version.
Walls or openings are detected incorrectly
Crop the image to the floor plan, increase contrast, and mark ambiguous doors or wall segments. Ask Claude to show the corrected 2D outline before extruding it.
A receipt does not include furniture dimensions
Use the product name or model number from the receipt to find the manufacturer page. If dimensions remain uncertain, enter them manually and label the item as estimated.
The 3D planner is slow or unstable
Reduce texture detail and furniture complexity, then verify the room geometry in 2D. Add 3D detail back only after navigation and dragging work smoothly.

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