2 Bedroom Granny Flat Plans: 650 Sq Ft Single-Story With Deck

648 sq ft living · 2 bedrooms · 1 baths · 1 story · 28'-7" × 24'-11"

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2 bedroom granny flat plans — dimensioned floor plan

This 2 bedroom granny flat plan is a single-story home with 650 sq ft of living space on a 28'-7" × 24'-11" footprint. There is no garage and no basement, so the whole plan sits on one compact level that suits a detached backyard unit.

The living room, at 11'-7" × 12'-10", and the 9'-0" × 9'-0" kitchen share the open main space, with a small deck as the outdoor extension. A 10'-9" × 4'-2" hall links this area to Bedroom 1 at 10'-11" × 9'-0", Bedroom 2 at 9'-0" × 9'-0", the 5'-2" × 9'-0" bathroom, and a 3'-5" × 4'-2" laundry cupboard. Compact room sizes keep circulation short, and there is no wasted corridor space beyond the hall.

Layout highlights

  • 650 sq ft of living space on one level, with no garage or basement.
  • Living room measures 11'-7" × 12'-10" and opens to the kitchen.
  • Compact 9'-0" × 9'-0" kitchen sits beside the main living space.
  • Two bedrooms: 10'-11" × 9'-0" and 9'-0" × 9'-0", both off the hall.
  • 5'-2" × 9'-0" bathroom and a 3'-5" × 4'-2" laundry cupboard keep services compact.

Room sizes

RoomSizeArea
Bedroom 29'-0" × 9'-0"81 sq ft
Bathroom5'-2" × 9'-0"47 sq ft
Laundry Cupboard3'-5" × 4'-2"14 sq ft
Hall10'-9" × 4'-2"45 sq ft
Living Room11'-7" × 12'-10"149 sq ft
Bedroom 110'-11" × 9'-0"99 sq ft
Kitchen9'-0" × 9'-0"81 sq ft

Who this plan suits

This plan suits a couple, a small family, or relatives who want a self-contained second dwelling with two bedrooms and one bath. It needs a lot with room for a 28'-7" × 24'-11" footprint plus the deck, such as a backyard behind an existing house.

How this plan was made

It was generated in AI Architectures Plan Studio from this one-line brief: “Single-story house, 2 bedrooms, 1 bath, compact open kitchen and living, laundry cupboard, small deck, 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, at most 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 2 bedroom granny flat plans?

They are plans for a small, self-contained secondary dwelling with two bedrooms, a bathroom, a kitchen and a living area. This version is a single-story layout of 650 sq ft of living space, designed to sit in a backyard behind a main house.

What affects the lot requirements and cost of building this plan?

The 28'-7" × 24'-11" footprint sets the minimum lot space, and you need to add clearance for setbacks and the deck. Cost depends on your local codes, site access, foundation type, finishes and utility connections to the main property.

Can I change this plan by chat?

Yes. You can describe changes in chat, such as resizing or moving rooms, adjusting the layout for a narrower lot, or adding a garage on a chosen side. The plan is regenerated with the updated room sizes and footprint.

How do I use the PDF, DXF and IFC files?

The PDF is for reviewing the layout and sharing it with a builder or local authority. The DXF opens in CAD software for editing and drafting, and the IFC loads into BIM tools for coordination. Local permit documents may still need review by a licensed professional.

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