This two-story plan has 3,180 sq ft of living space, not counting the garage, within a 50'-10" × 44'-3" footprint. From the front porch you enter a 9'-1" × 8'-4" foyer. The kitchen (9'-1" × 19'-6"), dining room (7'-2" × 19'-2") and family room (11'-7" × 29'-0") form the shared living zone. A pantry, a laundry room (7'-2" × 7'-6") and a 12'-5" × 5'-1" mudroom support daily routines and the 2-car garage.
The in-law suite is on the ground floor and is reached by a 6'-4" × 12'-11" suite hall. It has a bedroom (9'-0" × 16'-4"), a sitting room (9'-0" × 18'-6"), a closet and a private bath (9'-0" × 6'-8"). A powder room serves guests. Upstairs, the primary bedroom (15'-11" × 13'-5") has its own bath and walk-in closet. Two more bedrooms, a hall bath, a study and a 22'-5" × 10'-4" loft open off the upper hall.
Layout highlights
- In-law suite on level 1: 9'-0" × 16'-4" bedroom, bath and closet.
- Separate in-law sitting room, 9'-0" × 18'-6", gives that household its own living space.
- Kitchen, dining and family room (29'-0" long) share the open main floor.
- Mudroom, laundry and pantry sit between the garage and the kitchen.
- Upstairs primary suite of 15'-11" × 13'-5" plus a 22'-5" × 10'-4" loft.
Room sizes
| Room | Level | Size | Area |
|---|---|---|---|
| 2-Car Garage | 1 | 9'-8" × 42'-4" | 408 sq ft |
| Family Room | 1 | 11'-7" × 29'-0" | 337 sq ft |
| Laundry | 1 | 7'-2" × 7'-6" | 54 sq ft |
| Pantry | 1 | 4'-10" × 7'-6" | 36 sq ft |
| Mudroom | 1 | 12'-5" × 5'-1" | 63 sq ft |
| Foyer | 1 | 9'-1" × 8'-4" | 76 sq ft |
| Stair | 1 | 9'-1" × 7'-2" | 65 sq ft |
| Kitchen | 1 | 9'-1" × 19'-6" | 178 sq ft |
| Suite Hall | 1 | 6'-4" × 12'-11" | 82 sq ft |
| Powder Room | 1 | 7'-2" × 3'-10" | 28 sq ft |
| In-Law Closet | 1 | 7'-2" × 5'-2" | 37 sq ft |
| Dining | 1 | 7'-2" × 19'-2" | 137 sq ft |
| In-Law Sitting Room | 1 | 9'-0" × 18'-6" | 166 sq ft |
| In-Law Bedroom | 1 | 9'-0" × 16'-4" | 147 sq ft |
| In-Law Bath | 1 | 9'-0" × 6'-8" | 60 sq ft |
| Stair | 2 | 8'-4" × 7'-2" | 60 sq ft |
| Loft | 2 | 22'-5" × 10'-4" | 231 sq ft |
| Study | 2 | 15'-11" × 7'-10" | 124 sq ft |
| Primary Bedroom | 2 | 15'-11" × 13'-5" | 213 sq ft |
| Primary Bath | 2 | 9'-0" × 9'-8" | 87 sq ft |
| Primary Walk-in Closet | 2 | 6'-6" × 9'-8" | 63 sq ft |
| Upper Hall | 2 | 6'-2" × 21'-7" | 133 sq ft |
| Hall Bath | 2 | 6'-2" × 9'-8" | 59 sq ft |
| Bedroom 2 | 2 | 8'-4" × 14'-11" | 124 sq ft |
| Bedroom 3 | 2 | 8'-4" × 19'-6" | 162 sq ft |
Who this plan suits
This plan suits families who want parents or relatives to live on the main floor with their own bedroom, bath and sitting room, while the rest of the household uses the upstairs bedrooms. It needs a lot that fits the 50'-10" × 44'-3" footprint plus the garage and any setbacks.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Two-story multigenerational house: ground floor in-law suite with bedroom, bath and sitting room, open kitchen, dining, family room, laundry, mudroom, 2-car garage; upstairs primary suite plus 2 bedrooms and a bath, about 3,100 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 multigenerational house plans?
Multigenerational house plans are designed for several generations of a family to live under one roof. They usually include a private suite, often on the ground floor, with its own bedroom and bath, alongside shared kitchen and living areas. This plan adds an in-law sitting room and closet to that suite.
What affects the cost and lot requirements of this plan?
The two-story form keeps the footprint to 50'-10" × 44'-3" for 3,180 sq ft of living space, but the 2-car garage and front porch add to the area your lot must hold. Local soil, foundation type, finishes and labor rates drive cost the most. A local builder should price it against your site.
Can I change this plan by chat?
Yes. You can describe changes in chat, such as resizing rooms, moving the garage to the other side or adapting the layout to a narrower or wider lot. The plan is then regenerated with updated room sizes so you can review the new arrangement.
How do I use the PDF, DXF and IFC files?
The PDF is for reviewing and sharing the floor plans with family, builders or a permit office. The DXF opens in CAD software for drafting and measuring, and the IFC loads into BIM tools for 3D coordination. Have a licensed professional check the plans against local codes before construction.