This detached accessory dwelling unit has 700 sq ft of living space on a single level, inside a footprint of 34'-1" × 23'-7". It has one bedroom, one bathroom, and a covered patio. There is no garage, so the whole footprint goes to living area and outdoor space.
The main living room measures 20'-10" × 10'-10" and opens to the kitchen, which has a peninsula and measures 11'-3" × 9'-8". The peninsula separates cooking from sitting without a wall. A short 4'-2" × 7'-10" hall leads to the private rooms: a 10'-11" × 9'-8" bedroom with a 6'-4" × 3'-10" closet, a 6'-4" × 7'-4" bathroom, and a 4'-2" × 3'-5" laundry closet. The covered patio extends the living space outdoors.
Layout highlights
- Open living room at 20'-10" × 10'-10" runs the full length of the main space.
- Kitchen with peninsula, 11'-3" × 9'-8", defines cooking without closing off the living room.
- Bedroom of 10'-11" × 9'-8" has its own 6'-4" × 3'-10" closet.
- Laundry closet of 4'-2" × 3'-5" sits off a 4'-2" × 7'-10" hall.
- Single-level footprint of 34'-1" × 23'-7" with a covered patio and no stairs.
Room sizes
| Room | Size | Area |
|---|---|---|
| Bathroom | 6'-4" × 7'-4" | 47 sq ft |
| Bedroom Closet | 6'-4" × 3'-10" | 25 sq ft |
| Laundry Closet | 4'-2" × 3'-5" | 14 sq ft |
| Hall | 4'-2" × 7'-10" | 33 sq ft |
| Living Room | 20'-10" × 10'-10" | 225 sq ft |
| Bedroom | 10'-11" × 9'-8" | 106 sq ft |
| Kitchen with Peninsula | 11'-3" × 9'-8" | 109 sq ft |
Who this plan suits
This plan suits homeowners adding a rental, guest house, or space for a family member behind an existing house. The lot needs a backyard that can fit a 34'-1" × 23'-7" footprint plus the setbacks your local code requires.
How this plan was made
It was generated in AI Architectures Plan Studio from this one-line brief: “Detached backyard ADU (accessory dwelling unit) with about 700 sq ft of living space: 1 bedroom, 1 bath, open kitchen with peninsula and living, laundry closet, covered patio.” 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 700 sq ft ADU plans?
They are plans for an accessory dwelling unit with about 700 sq ft of living space, built as a separate small home on the same lot as a main house. This version is a detached, single-level unit with one bedroom, one bathroom, a kitchen, a living room, and a laundry closet.
What affects the lot fit and cost of this ADU?
The 34'-1" × 23'-7" footprint must fit within your setbacks, lot coverage limits, and utility access. Cost depends mostly on local labor, foundation type, finishes, and the distance to water, sewer, and power connections. Check your city's ADU rules before you start.
Can I change this plan by chat?
Yes. You can ask for changes in chat, such as resizing or moving rooms, adding a second bedroom, or adapting the footprint to a narrower or wider lot. The plan is then regenerated with the new dimensions, so check the updated room sizes before you build.
How do I use the PDF, DXF, and IFC files?
The PDF is for reading and sharing the drawings with contractors or your permit office. The DXF opens in CAD software for editing and measuring, and the IFC loads into BIM tools for 3D review. Have a licensed professional review the files for your site and local code before permit submission.