Your site analysis board in 5 minutes, not 5 hours.
Type a location. Get a presentation-ready board with the sun path diagram, wind rose, climate data and passive design strategies, written by an AI assistant built on our passive solar design guides, ready for your crit.
Get early access Try the free sun path
For architecture students, small studios and self-builders. No software to install.
Free sun path diagram for any location
Showing: London, United Kingdom
Want the wind rose, climate charts and design strategies too? Get the full board free in early access →
Site analysis shouldn’t eat your whole weekend
5 tools, 0 consistency
Sun path from one site, wind data from another, climate from a PDF, then redraw everything in Photoshop.
Data without meaning
Tutors don’t want a pretty diagram. They want to know what it means for orientation, shading and form.
Pro tools are overkill
Ladybug needs Grasshopper. Enterprise platforms cost $100+ a month. You need one clear board, today.
What’s on your board
How it compares
| Doing it by hand | Pro software | Site Analysis Board | |
|---|---|---|---|
| Time | 4–8 hours | Hours of learning | About 5 minutes |
| Cost | Free, plus your weekend | $100+/month | From $7 |
| Design advice | You figure it out | Raw data only | Climate-specific strategies |
| Presentation-ready | After redrawing | Rarely | Yes, A3 board |
Founding prices
We’re opening early access to a limited group. Reserve your plan now and lock in the founding price. Nothing is charged today.
Single board
One location, one-time
- Full A3 board
- PDF, PNG and SVG export
- Passive strategy notes
Semester pass
Unlimited boards for 5 months
- Unlimited locations
- Compare up to 3 sites
- Editable SVG layers
- Priority new features
Studio
Per month, for practices
- Unlimited boards
- Your logo and branding
- Client-ready reports
- 3 team seats
Get early access
Early-access members get their first full board free and keep the founding price.
Built by the team behind PassiveSolarArchitecture.com and its free solar calculators.
Questions
When does it launch?
Early-access members get their boards first, in order of signup. We’ll email you as soon as yours is ready.
Where does the data come from?
Sun positions are calculated astronomically for your exact coordinates. Climate and wind data come from long-term meteorological records, and every source is cited on the board.
Is AI-generated advice reliable?
The strategies follow established passive solar design principles, are written for the specific climate and are reviewed against our own design guides. Use them as a professional starting point, not a substitute for your own judgement.
Will I be charged when I reserve?
No. Reserving only locks in the founding price. You decide whether to buy when we launch.
Next step: check your own project
Try the ideas on your own project with the free passive solar design tools. It is free and runs in your browser.
Keep your results in one place
The free Passive Solar Design Checklist & Project Brief is a printable PDF with pages for your site’s sun angles, orientation, glazing per facade, shading and thermal mass, plus 12 questions to take to your architect or designer.