This two-story plan fits 1,200 sq ft of living space, not counting the carport, into a compact footprint of 21'-4" × 31'-2". A covered carport sits at the front. On the ground floor, a 3'-7" × 10'-4" hall leads into the living room (10'-4" × 12'-11"), which connects to the dining area (9'-6" × 8'-2") and the kitchen (9'-6" × 7'-4"). A guest WC and a laundry room (4'-9" × 4'-5") complete the level.
A straight stair (4'-9" × 11'-7") rises to a 19'-4" × 4'-2" upper hall that gives access to all three bedrooms and the bathroom. The primary bedroom (10'-11" × 12'-7") has its own ensuite (8'-0" × 5'-9"). Bedroom 2 (6'-8" × 11'-7") and bedroom 3 (7'-2" × 11'-7") share the bathroom (8'-0" × 6'-6").
Layout highlights
- Open kitchen (9'-6" × 7'-4"), dining (9'-6" × 8'-2") and living (10'-4" × 12'-11") on the ground floor.
- Guest WC (3'-7" × 5'-9") and laundry (4'-9" × 4'-5") are on the entry level.
- Primary bedroom of 10'-11" × 12'-7" with an 8'-0" × 5'-9" ensuite.
- Bedrooms 2 and 3 measure 6'-8" × 11'-7" and 7'-2" × 11'-7", sharing an 8'-0" × 6'-6" bath.
- Compact 21'-4" × 31'-2" footprint with a covered carport and no basement.
Room sizes
| Room | Level | Size | Area |
|---|---|---|---|
| Kitchen | 1 | 9'-6" × 7'-4" | 70 sq ft |
| Dining | 1 | 9'-6" × 8'-2" | 77 sq ft |
| Living | 1 | 10'-4" × 12'-11" | 133 sq ft |
| Hall | 1 | 3'-7" × 10'-4" | 37 sq ft |
| Guest WC | 1 | 3'-7" × 5'-9" | 20 sq ft |
| Laundry | 1 | 4'-9" × 4'-5" | 21 sq ft |
| Stair | 1 | 4'-9" × 11'-7" | 55 sq ft |
| Stair | 2 | 4'-9" × 11'-7" | 55 sq ft |
| Primary Bedroom | 2 | 10'-11" × 12'-7" | 138 sq ft |
| Ensuite | 2 | 8'-0" × 5'-9" | 46 sq ft |
| Bathroom | 2 | 8'-0" × 6'-6" | 52 sq ft |
| Upper Hall | 2 | 19'-4" × 4'-2" | 81 sq ft |
| Bedroom 2 | 2 | 6'-8" × 11'-7" | 78 sq ft |
| Bedroom 3 | 2 | 7'-2" × 11'-7" | 83 sq ft |
Who this plan suits
This plan suits families or buyers who want three bedrooms and 2.5 baths on a narrow urban lot. The lot needs room for a 21'-4" × 31'-2" footprint plus a carport at the front.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Two-story house, 3 bedrooms, 2 baths, ground floor open kitchen, dining, living, guest WC, laundry; upstairs 3 bedrooms, bath and ensuite, covered carport for 1 car at the front, about 105 m² (1,130 sq ft) of living space (garage not included). Metric European / Latin American layout: compact rooms, no basement; for a 8 x 20 m lot, so the building is at most 6.5 m wide (side setbacks) and about 13 m deep.” 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 house plans for an 8x20 lot?
They are designs sized to fit a narrow, deep lot, with the building kept slim and the rooms stacked along its length. This plan uses two levels and a 21'-4" × 31'-2" footprint to provide 1,200 sq ft of living space.
What affects the cost and lot requirements of this plan?
The main drivers are the two-story structure, the three wet areas (ensuite, bathroom, guest WC) and local labor and material rates. The plan has no basement, which avoids excavation costs. Check your local setbacks against the footprint and the front carport.
Can I change this plan by chat?
Yes. You can ask for changes such as moving or resizing rooms, switching the carport side, or adapting the plan to a different lot width. The layout is then regenerated with updated room sizes.
How do I use the PDF, DXF and IFC files?
The PDF is for reviewing the plan and sharing it with builders or local authorities. The DXF opens in CAD software for editing drawings, and the IFC imports into BIM tools. Local permit drawings may still need review by a licensed professional.

