Can Coohom AI turn a photo of my house into a floor plan?

Coohom AI works best with top-down sketches and blueprints. It cannot generate a floor plan from a regular photo of a room, but you can photograph a hand-drawn sketch and upload it for conversion.

What file formats does the AI floor plan generator accept?

You can upload JPG, PNG, and PDF files. For scanned blueprints, PDF usually preserves the most detail. For hand-drawn sketches, a clear photo in JPG or PNG works well.

How accurate are the AI-generated measurements?

AI-generated measurements are typically within 5-10% of the original sketch dimensions. You should always verify and adjust critical measurements manually using the ruler tool.

Can I edit the floor plan after AI generates it?

Yes. The AI-generated floor plan is fully editable. You can move walls, resize rooms, add or remove doors and windows, and change room labels using the standard editing tools.

Does the AI floor plan generator work on mobile?

The AI floor plan generator is accessible from mobile browsers but works best on desktop where you have more screen space for reviewing and editing the generated plan.

How many floor plans can I generate on the free plan?

Free accounts can generate a limited number of AI floor plans per month. The exact limit may vary, but expect around 3-5 AI generations per month on the free tier.

Can I generate multi-story floor plans with AI?

Coohom AI generates one floor at a time. For multi-story buildings, you upload or create each floor separately and then link them in the project settings.

What if the AI cannot detect my walls correctly?

Try increasing the contrast of your image and making wall lines thicker and darker. Remove any furniture drawings or text that overlaps wall lines. Clean, dark lines on white paper produce the best results.

Coohom AI Floor Plan Generator: Turn a Sketch Into a 2D Plan Fast

If you have ever spent hours trying to recreate a hand-drawn floor plan in digital software, Coohom AI floor plan generator will change your workflow. Upload a photo of your sketch, and the AI traces walls, detects rooms, and produces an editable digital floor plan in under a minute. This tutorial walks through every step, from preparing your sketch for the best results to fine-tuning the output.

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Quick Answer

Upload a sketch photo and get an editable digital floor plan in 30-60 seconds.
The AI detects walls, rooms, doors, and windows automatically.
Works with hand-drawn sketches, scanned blueprints, and PDF imports.
Free plan includes limited AI generations per month.
Always verify measurements manually after AI generation.

What Is the Coohom AI Floor Plan Generator?

The Coohom AI Floor Plan Generator is a built-in feature of the Coohom platform that uses computer vision and machine learning to convert images of floor plan sketches into fully editable digital floor plans. Unlike manual tracing tools that require you to click point by point, the AI does the heavy lifting automatically.

The technology works by analyzing the image for straight lines (walls), openings (doors and windows), and enclosed spaces (rooms). It then generates a vector-based floor plan with adjustable walls, room labels, and dimension markers. The entire process typically takes between 15 and 60 seconds depending on the complexity of the layout.

This feature is particularly valuable for real estate agents who need to quickly digitize property layouts, renovation contractors working from client sketches, and homeowners who want to experiment with layout changes before committing to construction.

Step-by-Step Tutorial

Step 1: Prepare Your Sketch

Before uploading, make sure your sketch meets these criteria for the best AI results. Use a clean white sheet of paper. Draw wall lines with a thick black marker or pen (not pencil). Make sure all walls are connected with no gaps at corners. Label each room if possible. Include door openings as gaps in walls with small arc indicators. Mark windows with parallel lines. Take a photo from directly above, not at an angle. Ensure even lighting with no shadows across the sketch.

Step 2: Start a New Project in Coohom

Log into Coohom and click "New Project" on your dashboard. Name your project descriptively (for example, "Smith Residence - Ground Floor"). Select the project type. For AI floor plan generation, choose "Start from Scratch" and then use the import option in the next step.

Step 3: Upload Your Sketch

In the editor, click "Import" in the top toolbar, then select "AI Recognize Floor Plan". Drag and drop your sketch image or click to browse. The AI will begin processing immediately. You will see a progress indicator while the system analyzes your image. Do not close the tab during processing.

Step 4: Review the AI Output

Once processing completes, Coohom displays the generated floor plan overlaid on your original sketch. You can toggle the overlay to compare. Check each room: verify that walls are in the correct positions, rooms are properly enclosed, and doors and windows are detected. Click on any wall segment to adjust its position or length.

Step 5: Adjust Measurements

Click on the "Dimension" tool in the toolbar. Click on any wall to see and edit its length. Enter the actual measurement in feet or meters. Coohom will proportionally adjust connected walls. Work through each room systematically, starting from the exterior walls and moving inward. This step is crucial for accuracy.

Step 6: Add Missing Elements

If the AI missed any doors, windows, or walls, add them manually using the "Draw Wall", "Add Door", and "Add Window" tools. These work with simple click and drag. You can also adjust room labels by clicking on the room name text.

Step 7: Save and Continue to 3D

Click "Save" and then "Enter 3D" to convert your 2D floor plan into a 3D model. From here, you can add furniture, apply materials, and start rendering. The AI-generated floor plan integrates seamlessly with all other Coohom tools.

Common Mistakes & Fixes

Photographing the sketch at an angle: This causes perspective distortion that confuses the AI. Always photograph from directly above, keeping the camera parallel to the paper.
Using light pencil lines: The AI needs high contrast to detect walls. Use a dark pen or marker. If you only have a pencil sketch, try increasing the contrast in your phone camera settings before uploading.
Including furniture drawings in the sketch: AI may confuse furniture outlines with walls. Only draw structural elements (walls, doors, windows) in the sketch you upload for AI recognition.
Not closing wall corners: Leave no gaps where walls meet. The AI needs enclosed spaces to detect rooms. Even a small gap can cause it to merge two rooms into one.

Pro Tips for Better Results

Use graph paper for your sketch to help maintain straight lines and proportional room sizes.
If you have a PDF blueprint, upload it directly rather than converting to an image first. PDFs preserve more line detail.
Write room dimensions outside the room outlines in your sketch, not inside. This prevents the AI from confusing text with wall features.
Generate the floor plan on desktop for the best experience, even if you photograph the sketch on your phone.

Export Options

Your AI-generated floor plan can be exported in multiple formats:

2D floor plan image: Export as a clean, dimensioned floor plan graphic (PNG or PDF).
3D model: Continue into the 3D editor and export the furnished model.
CAD format: Export for use in AutoCAD or SketchUp (available on paid plans).

Troubleshooting

AI does not detect any walls

Your image likely has insufficient contrast. Try editing the photo to increase brightness and contrast before uploading. Make sure the background is white and wall lines are dark.

Rooms are merged together incorrectly

Check for gaps in your wall lines at room boundaries. Even tiny breaks can cause the AI to treat two rooms as one. Redraw or close the gaps and re-upload.

Upload fails or processing times out

Keep image files under 10 MB. If your scan is very high resolution, resize it to around 3000 pixels on the longest side. Clear your browser cache and try again if the upload fails repeatedly.

Alternatives

Other tools that offer AI floor plan generation:

RoomSketcher: Offers manual floor plan creation with some smart features but no AI sketch recognition.
magicplan: Mobile-first floor plan app that uses AR to measure rooms by pointing your phone camera.
Planner 5D: Simple floor plan builder with basic AI features but less powerful sketch recognition than Coohom.

See our full alternatives page for a complete comparison.