Free DADU Estimate — Add Space DADU | Seattle
JM
KL
SR
+
★★★★★
50+ Seattle homeowners built with Add Space DADU

Your Backyard Could Be Earning $2,500/Month

Greater Seattle homeowners are cashing in on DADUs. Add Space handles permits, design & build — one team, zero stress.

$2,500
Avg monthly
rental income
2–6wks
Permit
timeline
100%
Design
to build
Step 1 of 333%
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Permits handled for you
Design-build specialists
Greater Seattle area
HB 1337 compliant
Free estimates
Why homeowners choose us

One team. Permits to keys.

Most contractors hand you off between designers, permit runners, and builders. We handle everything under one roof.

We handle all permits

Pre-approved City of Seattle plans cut approval time to 2–6 weeks. No paperwork headaches.

Design to build, one team

No juggling contractors. From concept through final inspection — seamlessly managed.

Built for HB 1337

Washington's 2025 law made DADUs easier than ever. We maximize the new regulations for you.

Seattle DADU rental income

How much could you earn?

Based on current Seattle rental market data

$2,200–$3,500
Ballard, Queen Anne, Magnolia
$2,000–$2,900
Shoreline, Kenmore, Kirkland
$1,800–$2,400
Bothell, Redmond, Bellevue
$27,000+
Net annual income (typical)
How it works

From estimate to move-in

01

Free estimate

We assess your property and give you a detailed estimate at no cost.

02

Design & planning

Custom DADU plans using pre-approved Seattle designs to speed permits.

03

Permits handled

We submit and manage all City of Seattle permits — no stress for you.

04

Build & handover

We manage construction through final inspection and hand you the keys.

Ready to add income to your property?

Get your free DADU estimate — no obligation, no pressure.

Get My Free Estimate →