Rendering Compact band
Main St ADU
- 550 sq ft
- 1 bed
- 0.75 bath
- One level
The smallest of the set: open living, a real bedroom, built-in storage.
Backyard home designs
Eight designs. Your lot picks.
The backyard homes United Signature builds, 550 to 1,216 sq ft. Your free report says which may fit your lot.
Four sizes
Start with the size, not the floor plan.
Setbacks and coverage pick the band. The report names yours.
Compact
500–650 sq ft
Studio or 1 bedroom · 1 bath
One person, a couple, a starter rental
Standard
650–800 sq ft
1 bedroom + flex room · 1 bath
A guest suite, or an office plus a bedroom
Family
800–1,000 sq ft
2 bedrooms · 1–1.5 baths
A parent, a small family, roommates
Spacious
950–1,200+ sq ft
2–3 bedrooms · 1–2 baths
Multi-generational living, a long-term rental
The designs
Smallest to largest.
Rendering 
Rendering Standard band
The Country Cottage
- 785 sq ft
- 2 bed
- 1 bath
- One level
Great room up front, two bedrooms kept private in back.
Rendering Family band
Cedar Groove
- 800 sq ft
- 2 bed
- 1 bath
- One level
A bright single-level two-bedroom with a front porch and rear patio. Also available with a garage.
Rendering Family band
The Horizon
- 981 sq ft
- 1 bed
- 1 bath
- Two levels, over a garage
A true one-bedroom over the garage, with a balcony. Parking stays.
Elevations Family band
The Ridge G
- 994 sq ft
- 2 bed
- 0.75 bath
- Two levels, over a two-car garage
Two bedrooms, full kitchen with pantry, covered porch — over a two-car garage.
Rendering Family band
The Summit
- 994 sq ft
- 2 bed
- 0.75 bath
- Two levels
The Ridge plan with storage and parking below.
Rendering Spacious band
The Atlas
- 1,143 sq ft
- 2 bed
- 1.5 bath
- Two levels
Full living upstairs, a flex room or two-car garage below. Also 1,213 sq ft over a two-car garage.
Photo · built Spacious band · built in Seattle, WA
Signature Modern
- 1,216 sq ft
- 2 bed
- 2.25 bath
- Two levels
Two levels, shared living apart from the bedrooms. The photos are the finished home.
Renderings show the design, not your property. Sizes as United Signature publishes them; a fixed price and final plan come after a site visit and design.
Signature Modern, SeattleBuilt by United Signature
Built
This one is finished, and lived in.
1,216 sq ft, two bedrooms, two levels, in Seattle. Built by United Signature.
What decides which one fits
Three numbers decide it.
Buildable area
What's left after setbacks and coverage. It sets the size band.
Height limit
Whether a second level clears it. At least 24 feet on most city lots.
Utilities and access
Sewer, water, and whether a truck can reach the back. These drive cost.
Which band is your lot?
Send the address. The report says — even if the answer is none.
Get my free report →Send the address. The report says — even if the answer is none.
Questions people ask about the designs
Can I change a design?
Yes. These are starting points; design adapts them to your lot and your city.
Are these "pre-approved"?
Depends on the city. Some run pre-approved plan programs; elsewhere the design goes in with your permit.
What about an addition or a conversion?
Those are designed to your house, not picked from a catalog. The report covers them the same way.