ADU and tiny house floor plan generator
- Studio to 2 bed
- 300–1,200 sq ft
- Living area vs. your city cap
- Free & unlimited
- PNG · PDF
Describe the ADU — “1 bedroom ADU, 600 sq ft, with patio” — and get a dimensioned plan sized to your lot limit. Studios, 1- and 2-bedroom units, tiny houses and garage conversions from 300 to 1,200 sq ft. Change the size and regenerate, drag rooms, check living area against your city's cap, export PNG or PDF. Free, no sign-up.
Real examples — description in, plan out
Questions people ask
What size can an ADU be?
It depends on your city and lot. Many US cities allow detached ADUs up to 800–1,200 sq ft; check your local rules. The living area shown here excludes porches and patios, as most rules do.
Can I use this plan for my permit?
It is a good starting concept to discuss with your designer or city. Permit sets usually need a licensed designer's drawings, site plan and structural details.
Is it really free?
Yes. Generating plans from a description, editing, the 3D preview and PNG/PDF/SVG export are free with no account. AI conversion of sketches and photos is free 3 times a day; after that, packs start at $4.90 for 15 conversions.
Do I need to create an account?
No. Your plan autosaves in your browser. Use “Share link” to open it on another device or send it to someone.