This single-story plan fits a 40'-0" × 40'-0" footprint and holds 1,350 sq ft of living space, not counting the garage. A front porch opens to a 7'-2" × 6'-0" foyer, and the 1-car garage (11'-2" × 14'-7") sits at the front of the house. The plan also includes a laundry room measuring 11'-11" × 4'-6".
The kitchen (11'-11" × 9'-1") and dining area (11'-11" × 8'-8") share a width and open to the 14'-8" × 18'-6" living room. A 12'-1" × 7'-2" hall serves the two secondary bedrooms (8'-8" × 11'-7" and 8'-4" × 11'-7") and the hall bath (8'-2" × 7'-2"). The primary bedroom (10'-7" × 12'-5") has its own bath (10'-7" × 5'-8") and a 4'-8" × 7'-2" walk-in closet.
Layout highlights
- Living room of 14'-8" × 18'-6" is the largest room and anchors the open plan.
- Kitchen (11'-11" × 9'-1") and dining (11'-11" × 8'-8") line up in one run.
- Primary suite combines a 10'-7" × 12'-5" bedroom, 10'-7" × 5'-8" bath and walk-in closet.
- Two secondary bedrooms, each about 8'-6" × 11'-7", share an 8'-2" × 7'-2" hall bath.
- Front 1-car garage of 11'-2" × 14'-7" and a 4'-6" deep laundry fit within 40'-0" × 40'-0".
Room sizes
| Room | Size | Area |
|---|---|---|
| 1-Car Garage | 11'-2" × 14'-7" | 162 sq ft |
| Laundry | 11'-11" × 4'-6" | 54 sq ft |
| Kitchen | 11'-11" × 9'-1" | 109 sq ft |
| Dining | 11'-11" × 8'-8" | 103 sq ft |
| Foyer | 7'-2" × 6'-0" | 43 sq ft |
| Bedroom 3 | 8'-4" × 11'-7" | 97 sq ft |
| Bedroom 2 | 8'-8" × 11'-7" | 100 sq ft |
| Hall Bath | 8'-2" × 7'-2" | 58 sq ft |
| Hall | 12'-1" × 7'-2" | 86 sq ft |
| Walk-in Closet | 4'-8" × 7'-2" | 34 sq ft |
| Living Room | 14'-8" × 18'-6" | 271 sq ft |
| Primary Bedroom | 10'-7" × 12'-5" | 131 sq ft |
| Primary Bath | 10'-7" × 5'-8" | 60 sq ft |
Who this plan suits
This plan suits small households or buyers who want three bedrooms and single-level living without a large house. It needs a lot that can take a 40'-0" × 40'-0" footprint, plus setbacks and driveway access at the front.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Single-story house for a narrow lot, building at most 40 ft wide and long and deep: 3 bedrooms, 2 baths, open kitchen and living, laundry, 1-car garage at the front, about 1,450 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 narrow lot one story house plans?
They are single-level homes sized to fit on lots with limited width, so the rooms are arranged compactly instead of spreading out. This plan measures 40'-0" × 40'-0" and provides 1,350 sq ft of living space with 3 bedrooms and 2 baths.
What affects the lot requirements and building cost of this plan?
The 40'-0" × 40'-0" footprint plus local setbacks sets the minimum lot size, and the front garage needs driveway access. Cost depends on your region, foundation type, finishes and site conditions, so get local builder quotes for a reliable figure.
Can I change this plan by chat?
Yes. You can ask to resize rooms, move the garage to a different side, or adjust the plan for a different lot width. The layout is regenerated so the rooms still connect, and you can review the updated sizes before using it.
How do I use the PDF, DXF and IFC files?
The PDF is for reviewing and sharing the plan with builders, lenders or permit offices. The DXF opens in CAD software for drafting and edits, and the IFC imports into BIM tools for coordination. Have a local professional check the plan against your codes before construction.