This single-story plan has 2,830 square feet of living space, not counting the 3-car garage. The footprint measures 72'-6" × 49'-3". Past the front porch, an 11'-5" × 7'-8" foyer opens to the 29'-8" × 17'-0" great room. The great room runs into the 16'-10" × 10'-4" dining area and the 21'-7" × 10'-4" kitchen, and glass walls tie all three spaces to the outdoors.
The 27'-4" × 20'-7" garage enters through an 18'-8" × 5'-1" mudroom, next to the 8'-10" × 6'-6" laundry and the 8'-10" × 5'-6" pantry. The 15'-7" × 7'-8" office is a separate room. The 17'-4" × 11'-7" primary suite has an 8'-6" × 7'-2" walk-in closet and a 7'-0" × 11'-11" bath. Bedrooms 2, 3 and 4 are reached from a bedroom hall, and a powder room serves guests.
Layout highlights
- Great room of 29'-8" × 17'-0" opens to a 21'-7" × 10'-4" kitchen and 16'-10" × 10'-4" dining area.
- The 27'-4" × 20'-7" three-car garage enters through an 18'-8" × 5'-1" mudroom.
- Laundry (8'-10" × 6'-6") and pantry (8'-10" × 5'-6") sit beside the mudroom and kitchen.
- Primary suite of 17'-4" × 11'-7" includes an 8'-6" × 7'-2" walk-in closet and private bath.
- A 15'-7" × 7'-8" office and a powder room keep work and guests near the foyer.
Room sizes
| Room | Size | Area |
|---|---|---|
| Bedroom 2 | 11'-6" × 11'-11" | 137 sq ft |
| Primary Bath | 7'-0" × 11'-11" | 84 sq ft |
| Office | 15'-7" × 7'-8" | 119 sq ft |
| Foyer | 11'-5" × 7'-8" | 88 sq ft |
| 3-Car Garage | 27'-4" × 20'-7" | 564 sq ft |
| Bedroom 4 Bath | 8'-4" × 5'-1" | 42 sq ft |
| Mudroom | 18'-8" × 5'-1" | 94 sq ft |
| Service Hall | 3'-7" × 34'-11" | 124 sq ft |
| Primary Suite | 17'-4" × 11'-7" | 201 sq ft |
| Walk-in Closet | 8'-6" × 7'-2" | 61 sq ft |
| Shared Bath | 8'-6" × 7'-2" | 61 sq ft |
| Bedroom Hall | 5'-2" × 19'-2" | 99 sq ft |
| Bedroom 4 | 15'-7" × 9'-0" | 140 sq ft |
| Bedroom 3 | 15'-7" × 9'-9" | 152 sq ft |
| Powder Room | 8'-10" × 4'-2" | 37 sq ft |
| Laundry | 8'-10" × 6'-6" | 57 sq ft |
| Pantry | 8'-10" × 5'-6" | 48 sq ft |
| Great Room | 29'-8" × 17'-0" | 504 sq ft |
| Kitchen | 21'-7" × 10'-4" | 222 sq ft |
| Dining | 16'-10" × 10'-4" | 174 sq ft |
Who this plan suits
This plan suits families who want four bedrooms, a home office and room for three vehicles on one level. It needs a lot that can hold a 72'-6" × 49'-3" footprint plus setbacks and a driveway to the garage.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Single-story modern house, 4 bedrooms, 3.5 baths, open kitchen, dining and living with glass walls, office, mudroom, laundry, attached 3-car garage, front porch, about 2,900 sq ft of living space (garage not included).” 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 modern house plans with a 3 car garage?
They are contemporary, usually single-story or two-story designs with clean lines, large windows and an attached garage for three vehicles. In this plan the garage measures 27'-4" × 20'-7" and is not counted in the 2,830 sq ft of living space.
What affects the lot and building cost of this plan?
The 72'-6" × 49'-3" footprint sets the minimum lot width and depth once setbacks are added. Glass walls in the main living area, the roof span over the great room and local labor and material rates will drive cost more than the room count.
Can I change this plan by chat?
Yes. You can ask to resize rooms, swap the garage to the other side, add or remove a bedroom, or adjust the plan for a narrower lot. The layout is regenerated with the new dimensions, and you can review the result before downloading files.
How do I use the PDF, DXF and IFC files?
The PDF is for review, printing and sharing with your builder or lender. The DXF opens in CAD software for further drafting, and the IFC file imports into BIM tools. Local permit sets usually need review by a licensed architect or engineer.