How to Create a Floor Plan from a Photo: AI-Powered, Free

If you have photos of a room but no floor plan, you're in a situation that used to require a professional or a significant time investment. Architects and interior designers have long been able to extract spatial information from photographs — reading dimensions from proportions, identifying room layout from visual cues, reconstructing plans from site photos. AI has made a version of this accessible to anyone with a browser.

In 2026, AI-powered tools can analyze room photographs, identify walls, doors, windows, and fixed features, and generate a working floor plan as a starting point for your design. The result isn't perfect without human refinement — no AI tool is — but it compresses the starting process from hours to minutes and gives you something concrete to work with immediately.

This guide covers exactly how to do it: which tools work, what preparation makes the AI more accurate, how to refine the output, and how to go from a photo to a finished, shareable floor plan.

When Photo-to-Floor-Plan Works Best

Before walking through the process, it's worth being specific about where this approach works well and where it has limitations.

Best use cases:

Documenting an existing space. If you're moving into a new apartment and want a floor plan before the move, taking photos of each room and generating plans from them is significantly faster than measuring manually and drawing from scratch. The AI handles the initial interpretation; you verify and correct.

Renovation planning for a room you already live in. Having a floor plan of your current layout is the starting point for any renovation design. Photo-based generation creates that starting point quickly.

Real estate and rental documentation. Agents and landlords who need basic floor plans for listings can generate them from property photos faster than commissioning professional measurements.

Preliminary design exploration. If you're working with an unfamiliar space and want to start exploring layout options before a detailed site visit, photo-based floor plan generation gives you something to design against.

Where limitations apply:

Precise structural documentation. Photo-based AI generation produces accurate approximations, not architectural drawings. For construction, permitting, or structural modifications, professional measured drawings are required.

Complex or unusual spaces. Highly irregular room shapes, multi-level spaces, and rooms with significant architectural complexity produce less reliable AI-generated outputs and require more manual correction.

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What You'll Need Before Starting

Useful photos: Wide-angle shots from corners of each room, taken from standing height. Photos that show two or three walls simultaneously help the AI understand spatial relationships. Include photos of doorways and windows. Aim for well-lit, clear images — shadows and blur reduce accuracy.

A tape measure (optional but recommended): Having at least one confirmed measurement — the width of a wall you can verify — gives you a reference point to correct the AI's dimensional interpretation. Room photos without any known dimension produce layouts that may be proportionally accurate but dimensionally approximate.

Your room dimensions if available: If you have the room dimensions from a lease agreement, property listing, or previous measurement, these can be input directly to anchor the AI-generated layout to accurate measurements even if the photo interpretation drifts slightly.

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Step-by-Step: Creating a Floor Plan from a Photo

Step 1 — Open the Right Tool

Open Coohom's free floor plan creator in your browser. No download or installation is required. Create a free account with your email — this takes about 60 seconds and gives you access to the full workflow including AI-assisted room interpretation, manual editing, and 3D rendering.

Coohom's photo-to-floor-plan workflow works in the browser on any device. On iPad or a touch screen, you can also use the Apple Pencil or stylus to refine the generated output directly.

Step 2 — Prepare Your Photos

Before uploading, review your photos and select the most useful ones:

1. Choose the widest angle shot available for each wall
2. Include at least one photo that shows a corner where two walls meet
3. Make sure doors and windows are visible in at least one image per room
4. If the room has architectural features — a bay window, an alcove, a support column — make sure these appear in at least one photo

You don't need professional photography. A clear smartphone photo taken in good light is sufficient. What matters is that the walls, floor, and key features are visible without obstruction.

Step 3 — Upload and Let AI Interpret the Space

Upload your selected photos to Coohom's room interpretation tool. The AI analyzes the images and generates an initial floor plan based on what it identifies: wall positions, door and window locations, approximate room proportions, and fixed architectural features.

This process takes 30 to 60 seconds per room. The output is a 2D floor plan that reflects the AI's interpretation of your photos. At this stage, treat the output as a first draft — it will almost certainly need adjustment, but it gives you a spatial framework to work from rather than a blank canvas.

Step 4 — Verify and Correct the Generated Layout

This is the most important step, and the one most people underestimate. The AI interprets photographs — it doesn't measure them. The generated layout will typically be proportionally reasonable but dimensionally approximate. Common corrections needed:

Wall lengths: Compare the AI-generated dimensions against any known measurements. If you have a tape measure handy, verify the longest wall in the room and use this as a reference to scale the others. In Coohom, you can tap any wall and input the correct dimension directly.

Door positions and swing direction: AI interpretation of door positions is generally good but not always precise. Verify that each door is on the correct wall and that the swing direction matches reality — this matters for furniture clearance.

Window positions and sizes: Window proportions as read from photos often need minor adjustment. Check that windows are on the correct walls and at approximately the right positions.

Architectural features: Alcoves, recesses, and non-rectangular elements sometimes get smoothed out in AI interpretation. Add these back manually if they affect furniture placement.

Plan to spend 10 to 20 minutes on corrections for a standard room. For a full apartment, budget 45 to 60 minutes across all rooms.

Step 5 — Add Furniture and Design the Layout

Once the room shell is accurate, you're in the standard floor plan workflow. Open the furniture library — Coohom has over 70 million 3D models — and furnish the room by dragging items into the plan. Use the 2D view to verify clearances and the 3D view to evaluate how the arrangement feels spatially.

If you're documenting an existing layout rather than designing a new one, place furniture to match what's currently in the room. This gives you an accurate record of the current state, which is useful as a baseline for renovation planning.

If you're designing a new layout, use the photo-generated room shell as the accurate spatial container and experiment with different furniture arrangements in the planner.

Step 6 — Export or Share the Result

With the floor plan finalized, export it as a PNG for sharing or embedding, or copy the project link to share the interactive version. The shared link allows anyone to view the floor plan and 3D model in a browser without creating an account — useful for sharing with a partner, contractor, or landlord.

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How AI Reads Room Photos: What's Happening Under the Hood

Understanding how the AI interprets photos helps you get better results.

The AI uses a combination of computer vision techniques to analyze room photographs. It identifies structural edges — where walls meet floors, where walls meet each other, where openings in walls occur — and uses these to reconstruct the room's geometry. It interprets perspective cues to estimate proportions and uses pattern recognition to classify features as doors, windows, or fixed elements.

This is an AI-powered floor plan creator that's doing something genuinely complex: converting 2D images back into 3D spatial information and then flattening that 3D information into a 2D floor plan. The accuracy depends on photo quality, room regularity, and the presence of visible reference points the AI can use for scale calibration.

The most common failure mode is dimension estimation. The AI can read proportions well but has no inherent sense of scale — it doesn't know if the room is 10 feet wide or 14 feet wide unless there's a reference point. This is why having at least one known dimension to input after generation is so useful: it anchors the entire plan to real measurements.

Tips for Better AI Floor Plan Accuracy

Photograph from corners, not from walls. Corner shots show two walls simultaneously and give the AI more geometric reference points. Shots taken from the middle of a wall show one wall clearly but give less information about room shape.

Include a reference object. A standard door is about 80 inches tall and 32 to 36 inches wide. A queen bed is 60 x 80 inches. If the AI can identify a known-size object in the photo, it can use this for scale calibration. Photographing a room with a door clearly visible gives the AI a scale reference it can work with.

Photograph each room separately. Don't rely on photos taken through doorways to document adjacent rooms. Each room should have its own set of photos taken from inside the space.

Use natural light where possible. Artificial lighting creates uneven shadows that can obscure wall edges and confuse the AI's edge detection. Photos taken in natural daylight with even illumination produce the most accurate results.

Don't over-correct immediately. After the AI generates the initial layout, resist the urge to immediately fix every discrepancy. First, input your known dimensions to rescale the plan. Many apparent inaccuracies resolve once the scale is corrected — proportions that looked wrong at the wrong scale often look right at the correct one.

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Frequently Asked Questions

Can AI create a floor plan from a single photo? A single wide-angle photo from a corner can generate a rough layout, but accuracy improves significantly with multiple photos. At minimum, use one photo per wall and a corner shot that shows two walls simultaneously.

How accurate is the AI-generated floor plan without manual correction? Proportional accuracy is generally reasonable — the relative sizes of different walls and spaces tend to be approximately correct. Dimensional accuracy (actual measurements) requires manual correction with known dimensions. Expect to spend 10 to 20 minutes on corrections for a standard room.

Can I use this method for multiple rooms to create a full apartment floor plan? Yes. Process each room separately, then connect the rooms in the full floor plan editor by aligning shared walls. This requires some manual work to ensure the rooms connect correctly, but it's faster than drawing a multi-room plan from scratch.

What if the room has furniture in the photos? Furniture in photos doesn't prevent AI interpretation, but it can obscure wall edges and reduce accuracy. If possible, photograph rooms with furniture pushed aside or from angles where the walls are clearly visible behind the furniture. If the room can't be cleared, work with what you have and expect to do more manual correction.

Is this workflow available on mobile? Yes. Coohom's browser tool works on mobile devices. For photo upload and initial generation, a phone or tablet is convenient because your photos are already on the device. For detailed manual editing, a larger screen is more practical.

From Photo to Finished Floor Plan

The photo-to-floor-plan workflow doesn't replace measurement and manual drawing — it accelerates the starting point and reduces the blank canvas problem. The AI does the spatial interpretation that would otherwise take significant time or expertise. You do the verification and refinement that requires knowing the actual space.

The result is a floor plan you can use for renovation planning, furniture decisions, or design exploration — produced in an afternoon rather than days.

Ready to start? Upload your photo to create a floor plan — AI interprets the space, you refine the details, and the finished plan is yours to keep and share for free.