The SI Architect
The SI Architect that never forgets.
Tell FormCraft SI about your plot and your wish list in plain words. It asks the right questions, designs three options, checks every one, and builds the real 3D BIM model — then remembers every correction you make.
Nothing is built until you approve it.
Why we built this
Too much of an architect's day goes into drawing, not thinking.
Placing walls. Fixing corners. Redrawing the same rooms. Tracing site surveys by hand. Doing it all again when the client changes one thing. That time should go to design, to clients, to craft.
AI chatbots can talk about architecture, but they can't touch a real model. So we built one that does the work in the model itself — and checks it like a senior architect would.
Let the person do the part that needs a person.
Our goal, stated plainly: the SI Architect does 95% of the modeling work. The architect keeps the 5% that truly needs a person — judgment, the right corrections, the right decisions.
See it in use
Type a request. Watch the model get built.
A real screen recording: a brief typed in plain words, the 3D BIM model built live, then changed by talking.
How it works
Four steps. No menus to hunt through.
Tell it what you need
Plot size, facing, floors, family, special rooms, Vastu. It asks until it knows enough — it won't guess.
Pick from three designs
Three options, each with a score out of 100 that shows exactly where points were lost. Pick one with a click.
Get the real model
Walls, floors, stairs, roof, doors, windows, furniture, services and drawing sheets — a real 3D BIM model.
Change it by talking
Say what's wrong. It fixes it, checks it again, and remembers the lesson for every project after.
Available now
What it does today.
Interviews before it draws
Asks about the plot, setbacks, floors, family and special rooms first. No drawing until it has a full brief.
Checks every design
Measured checks for setbacks, coverage, room sizes, reach and more. A design score out of 100 explains every lost point.
Real site surveys in
Reads contour surveys and DXF drawings with true levels — proven on a real 19-acre hill site with 150 contours.
Master planning
Zones, roads, plots and buildings for villa communities and resorts — every villa designed to one standard.
Written rule books
An architect's rule book, a space-planning rule book with 27 rules, a Vastu rule book with 24, and 63 rules for services.
Services drawn true to size
Electrical, plumbing and AC laid out from the rule book, drawn at real sizes, with a hover card on every point.
Cost workbook
Bill of Quantities straight from the model to Excel — per villa and for the whole site, priced from your own rates.
Renders and walkthroughs
Render a room from the model, polish it with AI, and export a walkthrough your client can open in a browser.
Learns from every mistake
A correction becomes a lesson, then a check, then a rule. The same mistake is not made twice.
Safe by design
Every change is all-or-nothing. If something fails halfway, it rolls back cleanly — no broken or doubled walls.
Your own AI key
Runs on a leading AI model with your own key. You are not locked to one provider.
Drawing sets
Plans, terrace, elevation and schedules on numbered sheets, every room named and sized.
Coming next
On the way — not shipped yet.
🎤 Talk out loud
A voice SI Architect you can have a real design conversation with.
📄 Full drawing sets
Sections and dimension strings added to the sheets, made straight from the model.
📷 Site plans from a photo or PDF
Upload a site plan picture or PDF, plus DWG files, and build from them.
📚 Precedent library
Search your past built projects and let the SI Architect adapt the best one.
✨ Simpler screens
An even easier, calmer interface for everyday use.
💻 One-click install, Mac too
A simple installer for Windows, then a Mac version.
Who it's for
Built for three worlds.
Developers
Master-planned villa communities where every villa is designed, checked and costed to one standard — from the site survey up.
Boutique hospitality
A real arrival, privacy for every key, and service areas kept off guest paths — for resorts, spas and retreats.
Families
One home, designed with the same care as a flagship project — your plot, your rooms, your way of living.
And for the architects and design-build teams who deliver all three.
From the studio
Insights
Why We Built an SI Architect, Not Another Drafting Plugin
Why the model itself — not a chat window — is the product.
Read more →Inside a Real Site Survey Import
Turning a 19-acre contour survey into a site you can plan on.
Read more →The 95/5 Rule
Why we want the SI Architect to do 95% of the modeling, on purpose.
Read more →The Architect That Never Forgets
How one correction becomes a lesson, a check, and finally a rule.
Read more →Built on trusted foundations
Built by practising architects, not a research demo.
FormCraft SI comes from DesignBuild.Villas (DBV), a design-build firm working on real luxury villas and villa communities. Every feature exists because a real step was slow or kept going wrong. Every rule exists because a real mistake was found and fixed.
- A complete SI design software — its own rules, checks and memory.
- A proven, professional-grade 3D engine computes the solids underneath.
- Works with leading AI models, using your own key.
Honest limits: FormCraft SI makes coordination models, not certified drawings. Structure is signed by a licensed engineer, and town-rule checks guide you — they don't replace approval.
Early access
Join the waitlist.
We are opening FormCraft SI to developers, studios and families in small groups. Windows 11 first.
You're on the list.
We'll write to you as we open early access.