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Example plans · 2 plans

2 bedroom ADU floor plans

A 2 bedroom ADU is a second home on the same lot with two bedrooms, its own kitchen and its own entrance. Our plans have 800 to 1,000 sq ft: one on a single floor, one stacked on two floors to keep the footprint small.

Plans
2
drawn to scale
Sizes
800 to 1,000 sq ft
finished area, ANSI Z765

· How we calculate · Example plans, not real addresses

40′20′BEDROOM 1127.4 sq ftBEDROOM 2128.2 sq ftLIVING ROOM183.4 sq ftBATH49.6 sq ftHALL49.4 sq ftKITCHEN140.8 sq ftCLOSET17 sq ftLAUNDRY17 sq ftFRONT PORCH60 sq ft
2 bed ADU on one floor, 40 × 20 ft

The plans

2 bedroom ADU floor plans, 2 examples

Each plan is drawn to scale and measured room by room. Open one in the editor and change it to fit your lot.

2 bed ADU on one floor, 40 × 20 ft

Long and shallow to fit along the back of a lot. Both bedrooms sit at one end on a short hall with the bathroom and two closets; the living room and kitchen take the other end.

Finished area
800 sq ft
74 m² · ANSI Z765
Not counted
60 sq ft
listed apart, see below
Layout
2 bed, 1 bath
one floor
  • 60 sq ft porch or deck

Opens as your own plan with the same numbers. Save the drawing (PNG)

2 bed ADU on one floor, 40 × 20 ft floor plan: 800 sq ft (74 m²) finished, 2 bed, 1 bath · one floor, drawn to scale with every room labeled.
40′ × 20′ outsideExample floor plan, not a construction drawing

Rooms · 2 bed ADU on one floor, 40 × 20 ft

Room areas, 2 bed ADU on one floor, 40 × 20 ft
RoomFloorSq ftCounts as
Bedroom 1Floor 1127Finished, counts
Bedroom 2Floor 1128Finished, counts
BathFloor 150Finished, counts
HallFloor 149Finished, counts
ClosetFloor 117Finished, counts
LaundryFloor 117Finished, counts
Living roomFloor 1183Finished, counts
KitchenFloor 1141Finished, counts
Front porchOutside60Outside, not counted
Finished area, ANSI Z765800outside the walls

2 bed 2 bath ADU on two floors, 25 × 20 ft

Downstairs a living room and kitchen, a full bath and a laundry room with the back door. A straight stair leads up to two bedrooms and a second bath.

Finished area
1,000 sq ft
93 m² · ANSI Z765
Not counted
Nothing
all of it is finished space
Layout
2 bed, 2 bath
2 floors

Opens as your own plan with the same numbers. Save the drawing (PNG)

2 bed 2 bath ADU on two floors, 25 × 20 ft floor plan: 1,000 sq ft (93 m²) finished, 2 bed, 2 bath · 2 floors, drawn to scale with every room labeled.
25′ × 20′ outsideExample floor plan, not a construction drawing

Rooms · 2 bed 2 bath ADU on two floors, 25 × 20 ft

Room areas, 2 bed 2 bath ADU on two floors, 25 × 20 ft
RoomFloorSq ftCounts as
Living roomFloor 1147Finished, counts
KitchenFloor 1108Finished, counts
Stair hallFloor 179Finished, counts
BathFloor 149Finished, counts
LaundryFloor 161Finished, counts
Bedroom 1Floor 2112Finished, counts
Bedroom 2Floor 2138Finished, counts
LandingFloor 279Finished, counts
HallFloor 231Finished, counts
Bath 2Floor 245Finished, counts
ClosetFloor 233Finished, counts
Finished area, ANSI Z7651,000outside the walls

What counts

What counts in the square footage

With two floors each level counts, so the stacked ADU reaches 1,000 sq ft on the footprint of one floor. Many cities cap an ADU by its floor area, so check which number your rules use before you choose.

Each room is measured inside its walls. The finished area of a house is measured to the outside of the exterior walls (ANSI Z765), so it is larger than the rooms added up.

Questions

2 bedroom adu floor plan: questions

About these 2 bedroom adu plans. Can’t find your answer? Send us a message.

What is the maximum size an ADU can be?

It depends on your city and state. Many places cap a detached ADU somewhere between about 800 and 1,200 sq ft, or at a share of the main house. Check the local rule before you draw.

What are the common mistakes when building an ADU?

Forgetting setbacks and height limits, a bathroom you can only reach through a bedroom, and no space for laundry. Also measure the plan the way your city does, inside or outside the walls.

What are some good floor plans for an ADU that is 1000 square feet?

Two bedrooms and two baths fit well, on one floor or two. Our two-story plan has 1,000 sq ft with both bedrooms upstairs.

Can I change these plans?

Yes. Click Open in the editor under a plan and it opens as your own plan in the Squaremetry editor, with the same numbers as on this page. Move a wall and every area and the total update.

Is this a construction drawing?

No. This is an example floor plan, not a construction drawing. The Squaremetry team drew it for this page; it has no address. For a permit you need drawings from a qualified designer.

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