Cross-Platform Floor Plan App

I’m building a modern floor-plan drawing experience that runs seamlessly on iOS, Android, and the web. The core of the project is an intuitive canvas where users can sketch rooms, then refine them with measurement tools accurate to the centimeter. From there they should be able to drag-and-drop furniture, instantly switch to a real-time 3D view, and walk through the space as if they were inside it.

Feel free to lean on technologies such as Flutter, React Native, WebGL / Three.js, or any stack that lets us share as much code as possible across mobile and browser. The finished product needs to look and feel uniformly modern, load quickly, and handle complex floor plans without lag.

Deliverables
• A web app that runs in all major browsers
• Companion iOS and Android builds submitted to TestFlight / internal track
• Source code with clear documentation and build scripts
• Short video demo showcasing drag-and-drop, measurement, and 3D walkthrough working together

Acceptance criteria
1. Drawing accuracy verified against a set of test plans ±2 cm.
2. Furniture library loads in under two seconds on a mid-range phone.
3. 3D mode maintains 30 fps on devices from the last four years.
Project Overview:
Development of a full-stack AI-powered floor plan generator and configurator to be deployed on web and mobile platforms. The system will allow users to design, customise, visualise, and export residential building layouts.

Core Functional Modules
1. AI Floor Plan Generator
Input parameters:
Land size & shape
Number of rooms (bedrooms, bathrooms, kitchen, etc.)
Building type (granny flat, duplex, modular home)
Output:
Auto-generated optimised layouts
Multiple layout options for selection
2. Interactive Design Editor
Drag-and-drop interface
Modify:
Walls (dimensions, thickness e.g. 90mm steel frame)
Doors & windows
Room sizes and layouts
Snap-to-grid and dimension control
Real-time measurement display
3. 2D & 3D Visualisation
2D architectural floor plans
3D model rendering (live updates)
Walkthrough or rotation view
Lighting and material preview
4. Smart Compliance System
Align designs with Australian standards (NCC where applicable)
Pre-set rules for:
Minimum room sizes
Ceiling heights
Window placements
5. Material & Build Integration
Select materials:
Steel frames
Cladding systems
Flooring & finishes
Optional integration with supplier catalog (e.g. Spark materials)
6. Export & Documentation
Generate:
PDF floor plans
DWG/CAD files
Basic elevations
Printable builder-ready layouts
7. Cost Estimation Module (Optional but Preferred)
Auto calculate:
Material quantities
Estimated build cost
Custom pricing integration
8. User Dashboard
Account login/signup
Save multiple projects
Edit & duplicate designs
Project history tracking
9. Platform & Integration
Web app (primary)
Mobile responsive or native apps
WordPress integration (API or embedded tool)
CRM integration (lead capture)
Technical Requirements
Frontend: React / Next.js (preferred)
Backend: Node.js / Python (AI integration)
AI Engine: OpenAI / custom ML model
3D Rendering: Three.js / WebGL
Cloud Hosting: AWS / GCP
Deliverables
Fully functional web application
Mobile-compatible version
Admin/backend system
Documentation & training
Ongoing support (optional)
deal Developer
Experience in prop-tech / architecture tools
Strong UI/UX skills
Experience with AI-based design tools
Portfolio of similar work required
If this sounds like your kind of challenge, let me know what framework you propose, how you’ll handle real-time measurements, and a rough timeline for an MVP.