This two-story barndominium plan fits 2,290 sq ft of living space, not counting the covered porch, on a 40'-0" × 30'-0" rectangle. The ground floor holds the open living zone: a 21'-5" × 12'-11" great room, a 10'-0" × 14'-8" dining area and an 11'-1" × 14'-8" kitchen with island. A 5'-5" × 15'-11" foyer, a 6'-2" × 5'-10" pantry, a 6'-2" × 5'-6" mudroom and a 5'-0" × 7'-0" laundry support daily use.
A 5'-0" × 10'-1" stair leads to a 27'-0" upper hall that serves all three bedrooms. The primary bedroom is 13'-1" × 11'-11" with an 11'-11" × 6'-0" bath and an 11'-11" × 5'-6" walk-in closet. Bedroom 2 measures 12'-3" × 11'-11", bedroom 3 measures 14'-7" × 10'-1", and a 10'-8" × 5'-2" hall bath is shared. A 17'-8" × 10'-1" loft adds flexible space.
Layout highlights
- Open great room at 21'-5" × 12'-11" sits beside the dining area and kitchen.
- Kitchen with island is 11'-1" × 14'-8", with a 6'-2" × 5'-10" pantry nearby.
- Mudroom (6'-2" × 5'-6") and 5'-0" × 7'-0" laundry keep entry clutter and chores on level 1.
- Primary suite upstairs: 13'-1" × 11'-11" bedroom, 11'-11" × 6'-0" bath, 11'-11" × 5'-6" closet.
- Bedrooms 2 and 3 plus a 17'-8" × 10'-1" loft open off a 27'-0" upper hall.
Room sizes
| Room | Level | Size | Area |
|---|---|---|---|
| Great Room | 1 | 21'-5" × 12'-11" | 277 sq ft |
| Dining | 1 | 10'-0" × 14'-8" | 147 sq ft |
| Kitchen with Island | 1 | 11'-1" × 14'-8" | 163 sq ft |
| Foyer | 1 | 5'-5" × 15'-11" | 85 sq ft |
| Pantry | 1 | 6'-2" × 5'-10" | 36 sq ft |
| Mudroom | 1 | 6'-2" × 5'-6" | 34 sq ft |
| Hall | 1 | 4'-2" × 17'-6" | 74 sq ft |
| Laundry | 1 | 5'-0" × 7'-0" | 35 sq ft |
| Stair | 1 | 5'-0" × 10'-1" | 51 sq ft |
| Stair | 2 | 5'-0" × 10'-1" | 51 sq ft |
| Primary Bath | 2 | 11'-11" × 6'-0" | 72 sq ft |
| Walk-in Closet | 2 | 11'-11" × 5'-6" | 66 sq ft |
| Primary Bedroom | 2 | 13'-1" × 11'-11" | 156 sq ft |
| Bedroom 2 | 2 | 12'-3" × 11'-11" | 146 sq ft |
| Hall Bath | 2 | 10'-8" × 5'-2" | 55 sq ft |
| Upper Hall | 2 | 27'-0" × 5'-2" | 140 sq ft |
| Bedroom 3 | 2 | 14'-7" × 10'-1" | 147 sq ft |
| Loft | 2 | 17'-8" × 10'-1" | 178 sq ft |
Who this plan suits
This plan suits households that want three bedrooms and a shared living floor in a compact 40'-0" × 30'-0" barndominium footprint. The lot needs room for that rectangle plus the covered porch, which sits outside it, and there is no garage in this layout.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Barndominium on a 30 x 40 ft rectangular footprint, two-story: 3 bedrooms, 2 baths, open great room with kitchen island and dining, laundry, stair to the upper floor with the bedrooms, covered porch outside the rectangle, about 2,400 sq ft of living space.” 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 are 30x40 2 story barndominium floor plans?
They are barndominium layouts built on a 30 by 40 ft rectangle with living space on two levels. This version stacks an open living, dining and kitchen floor under three bedrooms, giving 2,290 sq ft of living space on the same footprint.
What affects building cost and lot needs for this plan?
The compact 40'-0" × 30'-0" rectangle keeps the roof and foundation simple, while the second level, two baths and the covered porch add framing and finish work. Your lot must fit the footprint and porch with required setbacks, and local codes, soil and finish choices will drive final cost.
Can I change this plan by chat?
Yes. You can describe changes in chat, such as resizing or moving rooms, adding a garage on a chosen side, or adjusting the plan for a narrower or wider lot. The layout is regenerated so the rooms still connect.
How do I use the PDF, DXF and IFC files?
The PDF is for reviewing the plan and sharing it with builders or lenders. The DXF opens in CAD software for drafting and editing, and the IFC loads into BIM tools for coordination. Have a local engineer or designer verify the plan against your site and code before construction.