This tiny house plan provides 450 square feet of living space on a single level, within an 18'-0" × 25'-0" rectangular footprint. It sits on a foundation and has no porch, deck or patio, so the whole footprint is enclosed living space. The plan has one bedroom and one bathroom.
The kitchen, at 6'-4" × 9'-9", runs along one wall and opens to the living area, which measures 10'-4" × 12'-11". A built-in desk nook of 5'-4" × 6'-6" gives you a fixed workspace without using the bedroom. The bedroom measures 9'-3" × 9'-9", and the bathroom measures 5'-4" × 6'-0". Every room is sized for daily use, with no space given to extras.
Layout highlights
- Single-story plan on a foundation, with no stairs to climb.
- Kitchen along one wall, open to the 10'-4" × 12'-11" living area.
- Built-in desk nook, 5'-4" × 6'-6", for working from home.
- Bedroom of 9'-3" × 9'-9" with a separate full bathroom.
- Simple 18'-0" × 25'-0" rectangle with no porch, deck or patio.
Room sizes
| Room | Size | Area |
|---|---|---|
| Living Area | 10'-4" × 12'-11" | 133 sq ft |
| Bathroom | 5'-4" × 6'-0" | 32 sq ft |
| Desk Nook | 5'-4" × 6'-6" | 35 sq ft |
| Kitchen | 6'-4" × 9'-9" | 62 sq ft |
| Bedroom | 9'-3" × 9'-9" | 90 sq ft |
Who this plan suits
This plan suits a single person or a couple who want a one-bedroom home with a dedicated workspace. It also works for anyone who wants a compact, single-level footprint that is easy to site and heat.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Tiny house on a 18 x 25 ft rectangular footprint (450 sq ft), one story, on a foundation: 1 bedroom, 1 bath, kitchen along one wall open to the living area, built-in desk nook. No porch, deck or patio.” An AI architect drafted the room program, a layout solver placed every wall and door, and the plan was checked automatically for room sizes, circulation and daylight. The same project produced the PDF sheets, layered DXF, IFC model and 3D model you can download above.
Frequently asked questions
What counts as a tiny house plan under 500 sq ft?
It is a home plan with less than 500 square feet of living space, usually one level with a compact kitchen, bath and sleeping area. This plan has 450 square feet on an 18'-0" × 25'-0" footprint. Check local zoning and building codes for minimum size rules before you choose a plan.
Can this tiny house be built on a foundation?
Yes. The plan is drawn as a one-story home on a foundation, not on wheels. Foundation type, framing and insulation depend on your site and local code, so have a local builder or engineer review the plan before you build.
Can I customize this plan with AI?
Yes. You can describe changes in plain language, such as moving the desk nook or changing the kitchen wall, and the layout is regenerated. Review any changed room sizes and clearances before you build from the result.
Can I use the plan in CAD software as a DXF file?
DXF is a common exchange format that opens in most CAD programs, so you can open the plan, measure it and add your own notes or details. Check scale and units when you import the file. A local professional may still need to review the drawings for permits.