Before · photo
After · renderingRedmond · Oct. 2, 2026
Rear extension and a new bathroom
≈ 208 sq ft added · a home addition
$145,000as quoted
See the full proposal (PDF) → You came from HousUp. This is United Signature, HousUp's partner builder for Washington — its own homes, prices and process. The free property report is still HousUp's.
Backyard homes · Washington StateBackyard homes · Washington
Keep the house. Keep the rate.Build the asset.
A second home in your back yard — room for parents or grown kids now, income or value later. Built by United Signature. Start with a free report on what may fit on your lot.
A second home in your back yard, by United Signature.
Watch: Thirty Steps, 88 seconds
Free · No obligation · An addition or the garage works too
Free · No obligation · Additions and garages too
- $63,400to sell an $845k home and move
- 51.5%of mortgaged owners hold a rate under 4%
- 2 morehomes allowed on most city lots
Clever, Aug. 2026 · WA DOR · Redfin · FHFA, Feb. 2026 · RCW 36.70A.681
Thirty Steps · 88 seconds
What if the room was already there?
- Her own front door, her own kitchen, her own quiet
- Typically 7 to 14 months, from design to move-in
- Later: a first place for a grown kid, a rental, or a condo of its own
Thirty Steps · 28 seconds
What if she lived thirty steps from your back door?
- Every Sunday, the same drive to Mom’s
- Her own front door, her own kitchen, close enough for dinner any night
- In Washington, it can even be sold as its own condo
Get a free property report →Within a few hours. No obligation, and the report is yours either way.
Backyard home packages
Five backyard homes. One price each.
From $297,049, with construction, the builder's fee and design & engineering in the price. Builder's grade on a flat lot; permits, utility fees and sales tax are extra.
From $297,049, design and construction included. Permits, utility fees and sales tax are extra.
RenderingCompact · one level
The Alder
520 sq ft · One level · 1 bed · 1 bath
$297,049
Photo · builtOne level, with a garage
The Cedar
800 sq ft + 249 sq ft garage · One level · 2 bed · 1 bath
$431,312
Photo · builtTwo-story, small footprint
The Willowmere
1,000 sq ft · Two levels · 2 bed · 2.25 bath
$392,427
RenderingThree bedrooms, with a garage
The Phinney
995 sq ft + 424 sq ft garage · Two levels · 3 bed · 2 bath
$437,593
Photo · builtTwo levels, 2–3 bedrooms
The Backyard Residence
1,100–1,300 sq ft · Two levels · 2–3 bed · 2.5 bath
$399,643Which one fits your lot?
Send the address. The free report says which sizes have room — and what only a site visit can settle.
Get a free property report →Send the address. The free report says which sizes have room — and what only a site visit can settle.
The Arbor DADU, Maple Leaf, SeattleBuilt by United Signature, 2024
Built
This one already got built.
1,205 sq ft over two levels, two bedrooms, its own entrance — in a Seattle back yard.
$757,500Median 2022 sale price of a Seattle backyard home sold as its own condo (Seattle OPCD, 2023) — a market figure, not a promise about your property
Built backyard homes
Three more, finished and lived in.
Recent proposals
What we've actually quoted.
Real United Signature bids from 2026, as quoted. Your price depends on your lot, your plan and your selections.
Before · photo After · rendering
RenderingSnohomish County · Aug. 17, 2026
Backyard home with a garage and an office
1,197 sq ft + garage · 2 bed + office / 2.5 bath
$475,408.92as quoted
See the full proposal (PDF) → 
RenderingSeattle · Aug. 17, 2026
Three sizes priced for one lot
600 to 995 sq ft · 1 to 3 bedrooms
$321,580–$438,593three options
See the full proposal (PDF) → Ways people pay
The home you own is usually the key.
Equity you already have
A home-equity line or a cash-out refinance, drawn as the build goes. The most common route — a line of credit sits behind your first mortgage and leaves your rate alone.
A renovation or construction loan
Lends on the finished value, pays the builder by milestone. Fewer lenders, more paperwork, bigger projects.
Rent that pays it down
A second home on the lot can carry part of its own cost. The report shows sourced rent context for your area.
For smaller scopes — a garage conversion, the finishes — United Signature's financing partner Enhancify offers 0% for up to 15 months on approved credit (660+); after the promotional period the card's standard rate applies. The terms, on the financing page → United Signature isn't a lender; the free property report comes first either way.
How it works
Four steps. The first is free.
Send the address
Two minutes on your phone. No visit.
Your lot gets checked
Zoning, setbacks, flood, slope, utilities. Public records only.
Your report arrives
Four pages, within a few hours. The finding on page one.
You decide
A site visit with us if you want one. Or nothing.
The free property report
Four pages. One decision.
- Your parcel and your city's rules, in plain language
- How much of the lot you can build on
- Which plans may fit, and a cost range for each
- What only a site visit can settle
Preliminary property report · samplePage 1 of 4
1805 Rucker Ave, Everett
Prepared at the request of a partner agent · HU-2026-SAMPLE
Appears feasible with conditionsDesign toward a two-bedroom (900–1,000 sq ft) once water and sewer service are confirmed in writing.
JurisdictionCity of Everett
ADUs allowedUp to 2 (HB 1337)
Owner-occupancy requiredNo
Mapped flood or wetlandNone on the parcel
Size band that may fit900–1,000 sq ft
Planning range$343,975–$552,500
Preliminary estimate from public records — not a guarantee of approval, value or final cost. Read the whole sample →
Backyard Home Basics
Five short videos. About a minute each.
1:05Episode 1
More room, without moving
1:11Episode 2
What your lot might hold
1:02Episode 3
The free report, page by page
0:59Episode 4
What it really costs
0:57Episode 5
What it does for value, honestly
Rather read? The guides — what could fit on your lot, what a backyard home really costs, how one gets built — are on the Learn page, with the FAQ.
What people say about us
Clients on working with United Signature.
“United Signature handled a large and complex kitchen reconstruction and remodel after a leak was discovered in the wall and under the floorboards. They were great communicators and helped me handle insurance and the HOA.”
“We had a bathroom and kitchen remodel done by Oleg (senior project manager), Natasha (lead designer) and Sergei (project manager). Excellent, high quality work. Always available and professional.”
“Exceptional service! I recently had my kitchen renovated by United Signature Design and Build and I couldn’t be happier with the results. From the initial consultation to the final details, everything went so smooth.”
United Signature’s remodeling clients — kitchens and baths — as published on unitedsignature.com. The backyard homes on this page were built by the same company.
Is this really free?
Yes. No obligation, no sales call. A no saves everyone a month.
How long does it take?
Seven to fourteen months from design to move-in. Permitting is the slow part.
What if my lot doesn't work?
The report says so, and why — and whether an addition or a garage conversion works instead.
Is there financing?
Yes. Most people use the equity they already have or a renovation or construction loan; United Signature's financing partner, Enhancify, offers 0% for up to 15 months on approved credit. The terms, on the financing page →
What fits on your lot?
Backyard home, addition or garage — two minutes to ask, a few hours to know.