Case study · 2026 · AI · Web
A flat description in plain text.Built an AI 3D-tour generator for property listings. Photos go in, an explorable first-person walkthrough drops out in seconds.
3D AI Property turns a one-paragraph property spec into a generated 3D floor plan + interior, walkable in FPV or viewable from a drone shot. The studio shipped the generation pipeline, the manual tweak editor, and the FPV / drone walkthrough modes.
- Next.js
- TypeScript
- OpenRouter
- SQLite
Inside the build
Overview
- <10s
- Spec → 3D plan
- 10+
- Interior styles
- FPV
- Walkable view
- 100%
- Editable post-gen
Website and API together: enter a property's basic specs and the AI generates its 3D floor plan and interior. You can tweak it by hand, then walk through it in FPV or see it from a drone.
What shipped
What it does
- AI-generated 3D buildings and interiors
- Manual editor for fine-tuning
- FPV and drone views · actually walkable
- Switch styles with one click
The problem
- A flat is hard to picture from photos alone
- Waiting on an interior designer is slow and expensive
- Hand-built 3D models take days
Why it matters
- Walkable 3D plan in seconds
- Buyers see the experience before they buy
- Try ten interior styles without a designer
How it shipped
- 01 · BRIEF
What level of fidelity is enough?
Pin the fidelity bar: a buyer needs to feel the layout, not see a CAD-grade render. We scoped to room-level walls, doors, windows, and 10 interior styles · everything beyond was deferred.
- 02 · BUILD
Spec → JSON layout → walkable 3D.
Two-stage AI pipeline: first an LLM converts the prose spec into a deterministic JSON layout (rooms, walls, openings); then a generator renders walkable 3D + interior from that JSON with a chosen style preset.
- 03 · SHIP
FPV walk + drone fly + manual edit.
Three viewing modes shipped over the same scene · a manual editor lets buyers and designers nudge walls, swap finishes, switch styles without regenerating from scratch.
Stack
Pipeline
Two-stage prose → JSON → 3D
Deterministic intermediate JSON makes the output reproducible and editable · no opaque black-box render.
FPV
First-person walkthrough
WASD + mouse navigation in the browser · the buyer feels the layout instead of guessing from photos.
Drone
Top-down drone fly-through
Cinematic top-down view for marketing assets · embeddable in listing portals.
Editor
Live manual tweak
Move walls, swap finishes, switch interior styles · all without re-running the generator.
Case study
“We honestly didn't think this was possible. Someone types in a property description, and a moment later there's a 3D model of the apartment that you can walk through in first person, like a video game. Our designers can still tweak it by hand, and within two weeks it was hooked into our listing site. Buyers actually call us back because of these tours.”
More work
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