ADU Construction Bellevue WA | Accessory Dwelling Units | Equinox Builders
ADU Construction Bellevue WA
⭐ 5-Star Rated
✔ BBB A+
✔ Licensed & Insured
✔ Est. 2014

ADD VALUE.
ADD INCOME.
ADD SPACE.

Accessory Dwelling Units that generate rental income and increase your property value — fully permitted and professionally built by Equinox Builders.

Get My Free Estimate 📞 206-971-1133
BBB A+ Rated
5-Star Google & Yelp
500+ Projects
Price Never Goes Up
Get Your ADU Estimate Today
Get Your Free
Estimate
RESPONSE WITHIN 24 HOURS · NO OBLIGATION
⭐ 55+ Five-Star Reviews  ·  BBB A+
100% free, zero obligation
Price never goes up — guaranteed
Licensed, insured & BBB A+ rated
Professional clean after every job
🔒 Free · No Obligation · We Never Share Your Info
Licensed & Insured
BBB A+ Accredited
5-Star Google & Yelp
Best of 2026 BusinessRate
Trex® Pro Certified
Pro Clean After Every Job
Price Never Goes Up
Family Owned · Redmond WA
Licensed & Insured
BBB A+ Accredited
5-Star Google & Yelp
Best of 2026 BusinessRate
Trex® Pro Certified
Pro Clean After Every Job
Price Never Goes Up
Family Owned · Redmond WA
15+
ADUs Built
5.0★
Google Rating
Full
Permits Handled
100%
Fixed-Price
🏆
Best of 2026
BusinessRate Award
⭐
5-Star Rated
Google · Yelp · BBB
🛡️
BBB A+ Accredited
Better Business Bureau
🏅
Trex® Pro Certified
Official Deck Contractor
📅
10+ Years
Serving Greater Seattle
ADU Equinox Builders
500+
Happy Families
ADU Construction Experts

YOUR PROPERTY'S
UNTAPPED POTENTIAL.

An ADU is one of the smartest investments you can make in the Pacific Northwest. With Bellevue's strong rental market, a well-built ADU can generate $2,000–$4,000/month in rental income — while adding significant property value. Equinox Builders handles everything from design to permits to construction.

LY
Liroy Yarimi
Founder & Owner · Redmond, WA
💰
Price Never Goes Up
What we quote is what you pay.
✨
We Leave It Spotless
Professional cleaners after every job.
⏰
On Time, Every Time
We respect your schedule, always.
🏆
Quality That Lasts
Premium materials, expert installation.
What We Build

ADU SERVICES

Every ADU is custom-built — from garage conversions to full detached units.

Detached ADUs
Standalone backyard units with their own entrance, kitchen, and bath — fully independent.
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Attached ADUs
Added to your existing home — cost-effective and seamlessly integrated into your property.
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Garage Conversions
Transform your unused garage into a fully permitted, livable ADU unit.
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Basement Conversions
Convert your basement into a legal ADU with proper egress, plumbing, and electrical.
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Permit Management
We handle all permit applications, city submissions, inspections, and code compliance.
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Full Interior Finish
Kitchen, bathroom, flooring, lighting — complete interior buildout to your specifications.
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ADU construction quality
10+
Years of Trust
Why Build an ADU

YOUR BACKYARD IS
AN ASSET.

An ADU is one of the smartest financial moves a homeowner can make. Here's why hundreds of Eastside families have built with Equinox.

💬
Honest Communication
We explain everything before we start. You'll always know what's happening.
💰
Your Quote = Your Final Price
No hidden fees, no surprises. What we quote is what you pay.
🏆
Premium Quality, Always
Top materials, every detail finished to a standard we're proud of.
✨
We Leave It Spotless
Professional cleaners after every project. You come home to beauty.
⏰
On Schedule, Every Time
We show up when we say and finish when we promise.
How It Works

OUR ADU
PROCESS

01
📞
Site Assessment
We evaluate your property and determine the best ADU type and placement.
02
📐
Design & Permits
We design your ADU and handle all permit applications with the city.
03
🔨
Construction
Our crew builds your ADU to code, on time, and to the highest quality standards.
04
✨
Final Inspection
City inspection, final walkthrough — your ADU is ready to rent or enjoy.
ADU Reviews

5-STAR ADU
REVIEWS

5.0
★★★★★
55+ Google Reviews
K
Kevin Schroedter Lopez
Local Guide · 3 weeks ago
G
★★★★★
"My wife and I were very impressed from start to finish. Liroy and Omer made us feel like every detail mattered. Dima and Yuri were the most skilled tradesmen we've ever had — I would call them artisans. We will definitely be asking Equinox to help with future projects."
Kitchen & Bathroom Remodeling · Bellevue
A
Anirban Basu
19 weeks ago
G
★★★★★
"They were transparent about pricing and made sure the job was done well. Would not hesitate to hire again."
Home Renovations · Redmond
J
Jeannie Nguyen
14 weeks ago
G
★★★★★
"Liroy was very communicative and helpful. The bathroom turned out great and we are very happy with the results."
ADU · Bellevue
M
Mandy Geddes
19 weeks ago
G
★★★★★
"Equinox was easy to work with. They listened, communicated, and were quick to respond. We had a great experience."
Bathroom & Kitchen
E
Emily Campbell
Local Guide · 19 weeks ago
G
★★★★★
"Omer & Liroy are wonderful, kind and honest people. Home renovation is important to do with people you trust. They were gracious and understanding throughout."
Home Renovation
J
Jensen Ward
18 hours ago
G
★★★★★
"They showed up at all appointed times, did exemplary work and used quality materials. Highly recommended contractor."
Deck · General Construction
Read all 55+ reviews on Google →
Our Work

RECENT PROJECTS

ADU Construction Bellevue WA
ADU · Bellevue
ADU Redmond WA
ADU · Redmond
ADU Sammamish WA
ADU · Sammamish
ADU Kirkland WA
ADU · Kirkland
ADU Issaquah WA
ADU · Issaquah
ADU Kirkland WA
ADU · Kirkland
ADU Bellevue WA
ADU · Bellevue
Service Areas

WE COME TO YOU.

From Redmond to Tacoma — Equinox Builders serves the greater Seattle area within 90 minutes.

📍
Our Office
8201 164th Ave NE, Redmond, WA 98005
⚡ Eastside — Our Backyard
BellevueRedmondKirklandSammamishIssaquahMercer IslandNewcastleMedinaNorth BendSnoqualmieDuvall
🌊 Seattle & North
SeattleWoodinvilleBothellKenmoreShorelineEdmondsLynnwoodEverettMill CreekSnohomish
🏔️ South King County
RentonKentAuburnFederal WayBurienMaple ValleyCovington
🌲 Pierce & Beyond
TacomaPuyallupGig HarborLakewoodBonney Lake
Common Questions

ADU
FAQ

How long does ADU construction take? ▾
Most ADU projects take 4–6 months from permit approval to completion. We manage the entire timeline for you.
How much does an ADU cost in Bellevue? ▾
ADUs typically range from $80,000–$250,000+ depending on type and size. We provide detailed fixed-price quotes.
Do you handle ADU permits? ▾
Yes — completely. We handle all permit applications, city submissions, inspections, and code compliance.
Can I rent my ADU right after construction? ▾
Yes! Once the city issues final occupancy permit (which we obtain for you), you can rent immediately.
What ROI can I expect from an ADU? ▾
ADUs in Bellevue typically generate $2,000–$4,000/month in rental income and add $150K–$300K+ to property value.
How do I get started with an ADU? ▾
Fill out our free estimate form or call 206-971-1133. We'll schedule a free site assessment to evaluate your property.
Start Here

GET YOUR FREE
ADU ESTIMATE

Fill out the form and we'll be in touch within 24 hours. No pressure — just honest advice from a local family business.

100% free, zero obligation
Response within 24 hours
Licensed & insured contractor
Fixed price — no surprises ever
Permits fully handled by us

Prefer to call?

📞 206-971-1133
No Obligation · 100% Free
Request Your
Free ADU Estimate
We respond within 24 hours
⭐ 55+ Five-Star Reviews  ·  BBB A+
★★★★★
55+ Verified Reviews
🔒 Private & secure. No spam, ever.
PREFER TO TALK? WE LOVE THAT.
ADU Construction Bellevue WA · Mon–Sat · 8am–6pm
📞 206-971-1133
📞 206-971-1133