This granny flat plan is a single-story, one-bedroom, one-bath dwelling with 640 sq ft of living space on a 34'-1" × 23'-4" footprint. A covered entry leads into a 3'-1" × 11'-3" entry hall, which connects the front door to the living area and the private rooms.
The kitchen (8'-4" × 10'-2") is open to the living room (10'-8" × 17'-5"), and sliding doors from the living room open onto the deck. The bedroom measures 11'-7" × 9'-8" and is served by a bathroom of 7'-4" × 6'-4". A laundry cupboard of 7'-4" × 4'-6" keeps the washer and dryer out of the main rooms. With no basement and no garage, everything sits on one level, which keeps the build compact and simple.
Layout highlights
- Open kitchen (8'-4" × 10'-2") flows into a 10'-8" × 17'-5" living room.
- Sliding doors from the living room open onto the deck.
- Bedroom of 11'-7" × 9'-8" with a 7'-4" × 6'-4" bathroom.
- Laundry cupboard of 7'-4" × 4'-6" saves space compared with a separate laundry room.
- Covered entry and 3'-1" × 11'-3" hall on a 34'-1" × 23'-4" single-level footprint.
Room sizes
| Room | Size | Area |
|---|---|---|
| Bathroom | 7'-4" × 6'-4" | 47 sq ft |
| Laundry Cupboard | 7'-4" × 4'-6" | 33 sq ft |
| Entry Hall | 3'-1" × 11'-3" | 35 sq ft |
| Bedroom | 11'-7" × 9'-8" | 112 sq ft |
| Living | 10'-8" × 17'-5" | 185 sq ft |
| Kitchen | 8'-4" × 10'-2" | 85 sq ft |
Who this plan suits
This plan suits a homeowner adding a secondary dwelling for a relative, a tenant or a guest, or a couple wanting a small one-bedroom home. It needs a backyard or rear lot wide enough for a 34'-1" × 23'-4" footprint plus the deck and access, subject to local setback and secondary-dwelling rules.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Single-story house, 1 bedroom, 1 bath, open kitchen and living with sliding doors to a deck, laundry cupboard, covered entry, about 60 m² (646 sq ft) of living space (garage not included). Metric European / Latin American layout: compact rooms, no basement; detached backyard granny flat (secondary dwelling, Australian rules allow up to 60 m²).” 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 granny flat plans?
Granny flat plans describe a small, self-contained secondary dwelling built on the same lot as a main house. This one has a bedroom, bathroom, kitchen, living room and laundry cupboard in 640 sq ft on a single level. Size limits and approval rules for secondary dwellings vary by location, so check with your local authority.
What affects the cost and lot requirements of this plan?
The 34'-1" × 23'-4" footprint, single level and no basement keep the structure simple, but site conditions, utility connections, finishes and local labor will drive the final cost. The lot needs room for the footprint, the deck, a path to the covered entry, and any required setbacks from the boundaries and the main house.
Can I change this granny flat plan by chat?
Yes. You can describe changes in chat, such as resizing rooms, moving the deck, adding a second bedroom or adapting the layout to a narrower or wider lot. The plan is regenerated with the new dimensions, so check the updated room sizes before you use it.
How do I use the PDF, DXF and IFC files?
The PDF is for reviewing and printing the drawings. The DXF opens in CAD software for editing or for a draftsperson to build on, and the IFC imports into BIM tools. Have a licensed designer or engineer check the plans against local codes before you apply for a permit.