This two-story plan has 2,920 sq ft of living space, not counting the garage, within a 51'-10" × 44'-11" footprint. A front porch opens to a 7'-0" × 9'-8" foyer, with the stair beside it and a hall leading back to the main living areas. The 16'-10" × 19'-11" great room anchors the ground floor. The 9'-9" × 11'-11" dining room and the 8'-6" × 18'-6" kitchen, with its 3'-10" × 9'-9" pantry, sit alongside it.
The primary suite is also on the ground floor: a 17'-8" × 10'-4" bedroom, an 8'-6" × 6'-4" closet and a 7'-0" × 9'-10" bath. An office, powder room, laundry and a 6'-10" × 6'-0" mudroom complete the level, along with the 3-car garage. Upstairs, an 8'-6" × 20'-10" hall connects three bedrooms, a shared bath, a private bath for Bedroom 2 and an 11'-3" × 26'-1" media room.
Layout highlights
- Primary suite on the ground floor: 17'-8" × 10'-4" bedroom, 8'-6" × 6'-4" closet.
- Great room measures 16'-10" × 19'-11" and sits beside the dining room and kitchen.
- Kitchen is 8'-6" × 18'-6" with a 3'-10" × 9'-9" pantry.
- Office at 7'-6" × 11'-11" and a powder room keep guests and work off the upper floor.
- Upstairs media room of 11'-3" × 26'-1" sits beside three bedrooms and two baths.
Room sizes
| Room | Level | Size | Area |
|---|---|---|---|
| Primary Bath | 1 | 7'-0" × 9'-10" | 69 sq ft |
| Foyer | 1 | 7'-0" × 9'-8" | 68 sq ft |
| Stair | 1 | 7'-0" × 7'-8" | 54 sq ft |
| Primary Suite | 1 | 17'-8" × 10'-4" | 182 sq ft |
| Great Room | 1 | 16'-10" × 19'-11" | 336 sq ft |
| Office | 1 | 7'-6" × 11'-11" | 89 sq ft |
| Dining | 1 | 9'-9" × 11'-11" | 117 sq ft |
| Primary Closet | 1 | 8'-6" × 6'-4" | 54 sq ft |
| Hall | 1 | 4'-2" × 17'-4" | 73 sq ft |
| Powder Room | 1 | 3'-10" × 7'-2" | 28 sq ft |
| Pantry | 1 | 3'-10" × 9'-9" | 38 sq ft |
| Kitchen | 1 | 8'-6" × 18'-6" | 157 sq ft |
| 3-Car Garage | 1 | 15'-7" × 36'-7" | 568 sq ft |
| Mudroom | 1 | 6'-10" × 6'-0" | 41 sq ft |
| Laundry | 1 | 8'-4" × 6'-0" | 50 sq ft |
| Stair | 2 | 7'-0" × 7'-8" | 54 sq ft |
| Bedroom 2 | 2 | 8'-6" × 21'-9" | 184 sq ft |
| Upper Hall | 2 | 8'-6" × 20'-10" | 176 sq ft |
| Media Room | 2 | 11'-3" × 26'-1" | 294 sq ft |
| Bedroom 4 | 2 | 11'-3" × 10'-9" | 121 sq ft |
| Shared Bath | 2 | 11'-3" × 5'-5" | 61 sq ft |
| Bedroom 2 Bath | 2 | 7'-0" × 8'-4" | 59 sq ft |
| Bedroom 2 Closet | 2 | 7'-0" × 6'-6" | 46 sq ft |
| Bedroom 3 | 2 | 7'-0" × 19'-3" | 135 sq ft |
Who this plan suits
This plan suits households that want the primary bedroom on the entry level and three more bedrooms upstairs, with room for cars and a media space. It needs a lot that fits the 51'-10" × 44'-11" footprint plus setbacks, and a front-facing or side-entry driveway for the 3-car garage.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Two-story house, 4 bedrooms, 3.5 baths, ground floor primary suite, kitchen, dining, great room, office, powder room; upstairs 3 bedrooms each with bath access, attached 3-car garage, front porch, about 3,000 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 4 bedroom 3.5 bath house plans?
They combine four bedrooms with three full baths and one half bath, usually a powder room near the main living areas. This plan puts the primary suite and powder room on the ground floor. Three more bedrooms, a shared bath and a Bedroom 2 bath are upstairs.
What affects the lot and building cost for this plan?
The 51'-10" × 44'-11" footprint, two stories and the 3-car garage set the lot size and foundation scope. Cost also depends on your region, site slope, finishes and the number of plumbing runs for the baths. Get local builder quotes for a reliable figure.
Can I change this plan by chat?
Yes. Describe the change in chat, such as resizing rooms, moving the garage to the other side or fitting a narrower lot, and the plan is regenerated with updated dimensions. You can keep adjusting until the layout fits your site.
How do I use the PDF, DXF and IFC files?
The PDF is for reading and sharing the drawings with a builder or designer. The DXF opens in CAD software for editing plan lines, and the IFC loads into BIM tools to review the model. Have a local professional check the plans against your codes before permit submission.