This two-story plan has 1,830 sq ft of living space, not counting the garage, within a footprint of 32'-10" × 39'-4". The entrance hall (9'-5" × 9'-0") opens toward the living room (11'-3" × 17'-10"), which sits beside the dining room (10'-4" × 9'-9") and the kitchen (14'-3" × 9'-0"). The 2-car garage (19'-2" × 17'-10") is attached on the ground floor.
A guest bedroom (10'-4" × 9'-9"), a shower room and a laundry (each 4'-6" × 9'-9") complete the ground floor, so one bedroom can be used without stairs. The stair (6'-4" × 9'-0") leads to a long upper hall that serves Bedroom 2 (11'-11" × 9'-0"), Bedroom 3 (11'-9" × 9'-0") and a bathroom (6'-8" × 6'-10"). The primary bedroom (9'-0" × 23'-9") connects to a walk-in closet (6'-8" × 6'-8") and a primary bath (6'-8" × 9'-5"). A roof terrace adds outdoor space.
Layout highlights
- Living room at 11'-3" × 17'-10" next to a 10'-4" × 9'-9" dining room.
- Kitchen measures 14'-3" × 9'-0" and sits beside the dining room.
- Ground-floor guest bedroom (10'-4" × 9'-9") with a shower room and laundry alongside.
- Primary suite upstairs: 9'-0" × 23'-9" bedroom, walk-in closet and 6'-8" × 9'-5" bath.
- Attached 2-car garage at 19'-2" × 17'-10" and a roof terrace.
Room sizes
| Room | Level | Size | Area |
|---|---|---|---|
| Stair | 1 | 6'-4" × 9'-0" | 57 sq ft |
| Guest Bedroom | 1 | 10'-4" × 9'-9" | 101 sq ft |
| Shower Room | 1 | 4'-6" × 9'-9" | 44 sq ft |
| Laundry | 1 | 4'-6" × 9'-9" | 44 sq ft |
| Dining | 1 | 10'-4" × 9'-9" | 101 sq ft |
| 2-Car Garage | 1 | 19'-2" × 17'-10" | 342 sq ft |
| Living Room | 1 | 11'-3" × 17'-10" | 201 sq ft |
| Entrance Hall | 1 | 9'-5" × 9'-0" | 85 sq ft |
| Kitchen | 1 | 14'-3" × 9'-0" | 128 sq ft |
| Stair | 2 | 6'-4" × 9'-0" | 57 sq ft |
| Bedroom 3 | 2 | 11'-9" × 9'-0" | 106 sq ft |
| Bedroom 2 | 2 | 11'-11" × 9'-0" | 107 sq ft |
| Upper Hall | 2 | 30'-10" × 3'-1" | 95 sq ft |
| Bathroom | 2 | 6'-8" × 6'-10" | 46 sq ft |
| Primary Bath | 2 | 6'-8" × 9'-5" | 63 sq ft |
| Walk-in Closet | 2 | 6'-8" × 6'-8" | 45 sq ft |
| Primary Bedroom | 2 | 9'-0" × 23'-9" | 214 sq ft |
Who this plan suits
This plan suits families who want a ground-floor guest room alongside three upstairs bedrooms, including a full primary suite. It needs a narrow, deep lot such as a 12x30 lot, with room for a 32'-10" × 39'-4" footprint and garage access from the street.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Two-story house, 4 bedrooms, 3 baths, ground floor open kitchen, dining, living, guest bedroom, shower room, laundry; upstairs primary suite and 2 bedrooms, bath, attached 2-car garage, about 170 m² (1,830 sq ft) of living space (garage not included). Metric European / Latin American layout: compact rooms, no basement; for a 12 x 30 m lot, so the building is at most 10.0 m wide (side setbacks) and about 23 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 a 12x30 lot?
They are floor plans drawn for a narrow, deep lot, with rooms stacked along the long side and a second floor to gain living area. This plan has 4 bedrooms, 3 baths and 1,830 sq ft of living space on two levels, with the garage not included in that figure.
What affects the cost and lot requirements of this plan?
The main drivers are the 32'-10" × 39'-4" footprint, the two levels, the attached 2-car garage and the roof terrace, which needs a waterproofed, structurally sound slab. Local setbacks, soil and finishes also change the final cost, so check them before you commit to a site.
Can I change this plan by chat?
Yes. You can ask in chat to resize or move rooms, switch the garage to the other side or adjust the plan for a different lot width. The layout is regenerated, so check the new room sizes before you build.
How do I use the PDF, DXF and IFC files?
The PDF is for review, printing and permit discussions. The DXF opens in CAD software for drafting and editing, and the IFC imports into BIM tools for coordination and quantity checks. A local architect or engineer should confirm the plan meets your code.