This two-story plan puts a three-car garage on the ground floor and a two-bedroom, two-bath apartment above it. Living space is 1,390 sq ft, not counting the garage, on a footprint of 38'-9" × 26'-7". The garage measures 24'-1" × 24'-7". A 12'-3" × 10'-11" workshop corner and a 6'-0" × 4'-2" storage room sit on the same level.
A 5'-10" × 13'-3" entry leads to a 6'-0" × 8'-8" stair that rises to the apartment. Upstairs, the 15'-7" × 15'-7" living room sits beside the 12'-9" × 8'-8" kitchen, with a 4'-6" × 8'-8" laundry nearby. An 11'-9" × 6'-2" hall serves Bedroom 2 (12'-3" × 8'-8"), Bath 2 (5'-2" × 9'-0") and the primary bedroom (8'-8" × 15'-7"), which has its own ensuite bath (6'-2" × 9'-0").
Layout highlights
- Three-car garage measures 24'-1" × 24'-7" on the ground floor.
- Workshop corner of 12'-3" × 10'-11" sits beside the garage bays.
- Separate 5'-10" × 13'-3" entry and 6'-0" × 8'-8" stair reach the apartment.
- Living room is 15'-7" × 15'-7", next to a 12'-9" × 8'-8" kitchen.
- Primary bedroom of 8'-8" × 15'-7" has an ensuite bath; Bedroom 2 is 12'-3" × 8'-8".
Room sizes
| Room | Level | Size | Area |
|---|---|---|---|
| Stair | 1 | 6'-0" × 8'-8" | 52 sq ft |
| Storage | 1 | 6'-0" × 4'-2" | 25 sq ft |
| Entry | 1 | 5'-10" × 13'-3" | 77 sq ft |
| Workshop | 1 | 12'-3" × 10'-11" | 134 sq ft |
| 3-Car Garage | 1 | 24'-1" × 24'-7" | 593 sq ft |
| Stair | 2 | 6'-0" × 8'-8" | 52 sq ft |
| Living | 2 | 15'-7" × 15'-7" | 242 sq ft |
| Hall | 2 | 11'-9" × 6'-2" | 72 sq ft |
| Bath 2 | 2 | 5'-2" × 9'-0" | 47 sq ft |
| Ensuite Bath | 2 | 6'-2" × 9'-0" | 55 sq ft |
| Primary Bedroom | 2 | 8'-8" × 15'-7" | 135 sq ft |
| Kitchen | 2 | 12'-9" × 8'-8" | 110 sq ft |
| Laundry | 2 | 4'-6" × 8'-8" | 39 sq ft |
| Bedroom 2 | 2 | 12'-3" × 8'-8" | 106 sq ft |
Who this plan suits
This plan suits owners who want a guest suite, rental unit or home office over a large garage with room for a workshop. It needs a lot that fits a 38'-9" × 26'-7" footprint plus driveway access to the garage doors.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Two-story detached 3-car garage with an apartment above: ground floor 3-car garage, workshop corner and stair; upstairs 2 bedrooms, 2 baths, open kitchen, living, laundry, about 950 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 is a 3 car garage with apartment above?
It is a two-story building with parking for three vehicles on the ground floor and a self-contained apartment on the second. Here the apartment has 1,390 sq ft of living space, 2 bedrooms and 2 baths, with its own entry and stair.
What affects the cost and lot requirements of this plan?
The 38'-9" × 26'-7" footprint sets the minimum lot size, and you will need room for driveway access to the garage. Cost depends mainly on local labor, foundation and soil conditions, utility connections to the apartment, and finish choices. Check local zoning rules for accessory dwelling units before you build.
Can I change this plan by chat?
Yes. You can describe changes in chat, such as resizing rooms, moving the garage doors to a different side, or adjusting the plan for a narrower lot. The layout is updated, and you can review the revised plan before downloading it.
How do I use the PDF, DXF and IFC files?
The PDF is for review, printing and sharing with a builder or permit office. The DXF opens in CAD software for 2D editing and detailing. The IFC is a BIM model you can open in compatible tools to check the rooms and structure in 3D.