This 40x80 shop house plan places a one-story home and a large working shop inside a single 40'-0" × 80'-0" rectangle. The home offers 1,800 sq ft of living space with three bedrooms and two baths, while the shop measures 38'-0" × 30'-2" and sits within the same footprint.
The living side centers on a 29'-0" × 12'-11" great room that connects to a 22'-9" × 7'-10" kitchen with island and an 8'-8" × 13'-9" dining area. A foyer, mudroom, laundry and office handle daily entry and work from home. The three bedrooms sit along a bedroom hall, with the primary bedroom at 12'-9" × 11'-7" beside its bath. A covered porch extends outside the rectangle.
Layout highlights
- Shop measures 38'-0" × 30'-2" and shares the 40'-0" × 80'-0" rectangle with the home.
- Great room at 29'-0" × 12'-11" opens to the island kitchen and dining area.
- Foyer, mudroom and laundry sit together, giving a practical entry between home and shop.
- Three bedrooms line a bedroom hall, with a hall bath serving bedrooms 2 and 3.
- Covered porch sits outside the main rectangle, so the footprint stays at 40 by 80 feet.
Room sizes
| Room | Size | Area |
|---|---|---|
| Shop 40x36 ft | 38'-0" × 30'-2" | 1,148 sq ft |
| Office | 14'-3" × 6'-10" | 97 sq ft |
| Laundry | 7'-2" × 6'-10" | 49 sq ft |
| Mudroom | 8'-4" × 6'-10" | 57 sq ft |
| Foyer | 7'-4" × 7'-10" | 57 sq ft |
| Kitchen with Island | 22'-9" × 7'-10" | 178 sq ft |
| Great Room | 29'-0" × 12'-11" | 375 sq ft |
| Dining | 8'-8" × 13'-9" | 118 sq ft |
| Bedroom Hall | 28'-4" × 5'-2" | 147 sq ft |
| Hall Bath | 9'-3" × 5'-2" | 48 sq ft |
| Bedroom 3 | 9'-4" × 11'-7" | 108 sq ft |
| Bedroom 2 | 9'-1" × 11'-7" | 105 sq ft |
| Primary Bedroom | 12'-9" × 11'-7" | 147 sq ft |
| Primary Bath | 5'-8" × 11'-7" | 66 sq ft |
Who this plan suits
This plan suits owners who want a single-story home and a workspace on one lot, such as hobbyists, tradespeople or small-business owners. It also fits households that want a home office and a mudroom close to the shop.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Shop house on a 40 x 80 ft rectangular footprint, one story: 3 bedrooms, 2 baths, open great room with kitchen island and dining, office, laundry and mudroom, and a 40 x 36 ft shop inside the same rectangle, covered porch outside the rectangle, about 1,750 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 shop house plan?
A shop house plan combines living space and a working shop under one roof or within one footprint. In this plan, the 1,800 sq ft home and the 38'-0" × 30'-2" shop share a 40 by 80 foot rectangle.
What should I check before building a 40x80 shop house?
Confirm local zoning, setbacks and any limits on combined residential and shop use for your parcel. Also review soil conditions, utility access and how your jurisdiction treats the shop area, since codes may differ from the living space. A local engineer or builder should review the plan before permitting.
Can I customize this plan with AI?
Yes. You can describe changes such as moving the office, resizing a bedroom or adjusting the mudroom, and generate an updated layout from this starting point. Review any edited plan with a licensed professional before construction.
Can I use the plan in CAD with a DXF file?
A DXF file opens in most CAD programs, so you can measure, edit layers and add details such as electrical or plumbing. Check the scale and units when you import, and verify dimensions against the room sizes listed on this page.