This 600 sq ft ADU plan is a single-level, detached backyard unit with one bedroom and one bathroom. The footprint measures 23'-7" × 27'-1". The living space is organized around a combined kitchen and living area, and a small covered entry shelters the front door.
The living room, at 11'-2" × 17'-6", is the largest room. It shares an open connection with the kitchen, which measures 9'-4" × 9'-0". The bedroom, at 9'-4" × 11'-9", is a separate room off the main space. The bathroom, at 7'-6" × 7'-2", is next to a stacked laundry closet of 4'-1" × 7'-2". Stacking the washer and dryer saves floor area for the rooms you use every day.
Layout highlights
- 600 sq ft of living space on one level, with no stairs.
- Living room of 11'-2" × 17'-6" shares an open plan with the kitchen.
- Kitchen of 9'-4" × 9'-0" sits within the open living area.
- Bedroom of 9'-4" × 11'-9" is a separate room with space for a bed.
- Bathroom of 7'-6" × 7'-2" is paired with a 4'-1" × 7'-2" stacked laundry.
Room sizes
| Room | Size | Area |
|---|---|---|
| Kitchen | 9'-4" × 9'-0" | 84 sq ft |
| Bedroom | 9'-4" × 11'-9" | 110 sq ft |
| Living | 11'-2" × 17'-6" | 195 sq ft |
| Bathroom | 7'-6" × 7'-2" | 54 sq ft |
| Stacked Laundry | 4'-1" × 7'-2" | 29 sq ft |
Who this plan suits
This plan suits homeowners adding a rental unit, guest house or space for a family member behind an existing home. It needs a backyard lot that can fit a 23'-7" × 27'-1" 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 600 sq ft of living space: 1 bedroom, 1 bath, open kitchen and living, stacked laundry, small covered entry.” 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 600 sq ft ADU plans?
They are plans for an accessory dwelling unit with about 600 sq ft of living space. This one is a detached, single-level unit with one bedroom, one bathroom, an open kitchen and living area, and stacked laundry. It is sized to sit in a backyard behind a main house.
What affects the lot and cost of building this ADU?
The 23'-7" × 27'-1" footprint must fit within your setbacks, and utility connections to the main house or street affect site work. Local ADU rules, foundation type, finishes and labor rates in your area drive the final cost. Check zoning and permit requirements before you start.
Can I change this plan by chat?
Yes. You can ask to adjust room sizes, move the covered entry, change which side the door is on or fit a narrower lot width. The plan is regenerated with the updated layout and measurements.
How do I use the PDF, DXF and IFC files?
The PDF is for review, sharing and permit discussions. The DXF opens in CAD software for 2D editing, and the IFC imports into BIM tools for 3D coordination. A local designer or engineer should confirm the plan meets your site and code requirements.