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Location and Projects

Address
509 Olive Way, Seattle, WA, 00000
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Seattle-adu Construction

Why Seattle ADU is the smart choice

Seattle ADU is a licensed, insured design-build team that does one thing exceptionally well: Accessory Dwelling Units. Because ADUs are our sole focus, we know every nuance of Seattle-area zoning, permitting, and construction—so your project moves faster and costs less.

What sets us apart

End-to-end, turn-key service – Feasibility study, architecture, engineering, permits, build, and final inspection—all handled in-house with a dedicated project manager, so you have a single point of contact from day one.

Up-front, fixed pricing & timeline guarantee – No surprise change orders. If we miss the deadline, we pay the penalty, not you.

Financing solutions for every homeowner – From HELOC guidance to partner programs that cover 100 % of construction costs and let rental income pay the loan, we make ADUs possible even when cash is tight.

Designs that maximize ROI – We optimize layout, energy efficiency, and rental appeal to boost property value and deliver strong cash flow the day you receive the keys.

Local craftsmanship & warranties – Licensed tradespeople, premium materials, and a written warranty that’s actually honored—because our reputation is everything.

Whether you want extra rental income, multigenerational living space, or a backyard home office, Seattle ADU delivers a stress-free, profitable build—on time and on budget.

From BuildZoom: Seattle-adu inc, 509 Olive Way, Seattle, WA holds a Construction Contractor, Construction Contractor license and 2 other licenses according to the Washington license board.

Their BuildZoom score of 118 ranks in the top 1% of 128,670 Washington licensed contractors.

Their license was verified as active when we last checked. If you are thinking of hiring Seattle-adu inc, we recommend double-checking their license status with the license board and using our project planner to get competitive quotes.

Seattle-adu inc Contact Information

Phone: (206) 210-3411
Address: 509 Olive Way, Seattle, WA 00000

Seattle-adu inc Seattle

Quality

118
99th percentile
How is the BuildZoom score calculated?
Pro tip: We generally recommend hiring a contractor with a score higher than 95.
Seattle-adu inc has a BuildZoom score of 118, which places them above 99% of 128,670 contractors in Washington.

Activity

2 projects
 2025
Our building permit records indicate that Seattle-adu inc has worked on at least 2.0 projects over the past year.

This is an overview of this contractor's activity. Click here to access our complete licensing and building permit database.

Pricing

1 project
 $100k-$250k
Value Not Public: 1.0 project
Pro tip: For more details about their pricing, check out their recent activity to see how much they have charged for different types of work.

Seattle-adu inc Reviews
5 out of 5 stars, based on 6 reviews

  • By Lyra F.
    September 3, 2025
    Kitchen Design
    $5,000

    We were impressed with Seattle ADU's attention to detail and commitment to quality. Our new ADU is beautifully finished and has added significant value to our property
  • By Asher L.
    September 1, 2025
    Building Design
    $4,444

    We worked with Seattle ADU on a garage conversion, and they exceeded our expectations. The team was skilled, courteous, and kept us informed throughout the process
  • By Daniella S.
    August 26, 2025
    Restaurant New Construction
    $44,444

    What I liked most about Seattle ADU was how professional and respectful the team was. They kept our property clean during construction and finished on time. The end result is a well-built ADU that adds real value to our home
  • By Cody R.
    August 24, 2025
    Restaurant New Construction
    $99,999

    Seattle ADU exceeded our expectations with our full construction project. Daniel managed everything from start to finish and kept us updated the whole way. The timeline guarantee gave us peace of mind, and the quality of work is outstanding
  • By Violet G.
    August 22, 2025
    New Home Construction

    Seattle ADU transformed our backyard with a beautiful ADU. The team was communicative, skilled, and left the space looking amazing. We love our new guest quarters
  • By Harper L.
    August 21, 2025
    Custom Home Build
    $7,000

    Seattle ADU made our garage conversion such a smooth experience. Daniel, our project manager, was always available to answer questions and kept everything on track. The pricing was transparent, and the build was finished right on schedule. Highly recommend their team
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Building Permits by Seattle-adu inc

Sort by: Notable Notable | Date Date | Job Value Job Value

This is a sample of this contractor's permits. Click here to access their complete permit history.

Remodeling
18551 SE 265th, Covington, WA, 98042
2025-06-25
Garage conversion remodel
Valuation:
$140,000
Permit #:
b25-0082
Status:
N/A
Fee:
N/A
Permit Type:
N/A
Building Type:
Residential
Building residential - addition
23420 NE 28th Pl, Sammamish, WA, 98074
2025-11-05
Addition - shuo
Valuation:
N/A
Permit #:
BLD2025-05721
Status:
plancheck
Fee:
N/A
Permit Type:
N/A
Building Type:
N/A