ClickCease

Limited Time Offer - Get Free Detailed 3D Design. Free Consultations      (888) 267-7718 Limited Time Offer - Get Free 3D Design. Free Consultations      (888) 267-7718 Limited Time - Free 3D Design

Stress-Free ADU Builders

We do it all, design, permits & build. Our years of expertise and competitive prices makes it easy to upgrade your home.

professional ADU Building
ADU Building contractors
customized ADU Building
ADU Building contractors
ADU Building contractors
ADU Building contractors
ADU Building pros
ADU Building around me
customized ADU Building
nearest ADU Building
ADU Building services
local ADU Building
ADU Building pros
ADU Building around me
WHY US

Award-Winning Local ADU Contractors in Seattle

MNBE Construction is Seattle’s Premier Contractor with years of experience in creating beautiful and practical ADUs, garage conversions, backyard renovations & more. Schedule Your Free Consultation Today!

IcoFont Icons ruler-pencil
In-House Designers

Bring your design concept to life with our in-house 3D designers

IcoFont Icons calendar
Guaranteed Timeline

You'll know when and how much from day one. No Surprises.

IcoFont Icons light-bulb
Inspired By You

We'll brainstorm ideas with you based on your budget & space.

IcoFont Icons calendar
Your Budget In Mind

Designing & remodeling your home shouldn't cost you an arm and a leg.

ADU Building in my area
reputable ADU Building

Building an ADU can be stressful, we've got your back

01

Call Us Now

Call us right now for a quick response. Talk to an ADU remodeling specialist and schedule your free in-house consultation

02

Free Consultation

Your ADU specialist will analyze your space and your budget, show you examples and listen to your ideas. After the consultation they will provide you with an itemized estimate

03

Design & Build

Once our in-house designers draw your plans to your satisfaction we get to work! Our certified staff will always be on time and answer all of your questions

04

Enjoy your ADU

Our hundreds of 5-star reviews say it all! We will make sure that you are 100% satisfied with our work before we leave. We are always available for any questions or concerns

Our Reviews

Hear it From Property Owners Just Like You.

MNBE Construction has been changing the ADU building experience with tailor-made customer service and expert, certified and dedicated team that will be there every step of the way

MNBE provided fantastic customer experience for our adu construction. He was punctual, professional and kept me updated as work progressed. I also appreciate that he was always courteous to deal with. I ended up hiring him for additional work while the adu was being done because he earned my trust and I was very satisfied with that work including room and laundry remodel plus painting of my entire house. Will continue to hire him in the future.

reputable ADU Building
Rick S.

Yelp Verified Review

The guys who worked and designed my adu were highly professional. They arrived on time and with no issues whatsoever completed the work and succeeded to create my dream adu. I highly recommend these guys. The guys who worked and designed my adu were amazing! They arrived exactly on time and had no issues at all! After everything, I was admired to see all the work was completed and my dream adu was finished! Using their services, you are sure to get what you asked for .

ADU Building in my area
Daniel C.

Yelp Verified Review

The work MNBE did for our home is outstanding, they redesign and frame our entire living room and kitchen area. Open concept, vaulted and expose beam. Highly recommended !!

ADU Building in my area
Alexander X.

Google Verified Review

MNBE provided great service, 3D design and amazing quality work. we communicated via whatsapp chat group during the project which helped my husband notify while he was out of state. thank you su much for the hard work !

ADU Building contractors
Yuval S.

Google Verified Review

MNBE was great! Quick response and competitive pricing. They operated very well and handled issues that arose quickly. Highly recommend this company. Look forward to our next project with them.

ADU Building pros
Mike W.

Yelp Verified Review

Writing a review for my ADU project was a pleasure. The efficiency of the project was impressive, as the speed at which it was completed was remarkable. The cleanliness of the site and the final product was noteworthy, showcasing the attention to detail taken by the team. Furthermore, the employees were professional, polite, and knowledgeable. Overall, the ADU project was an excellent experience, and I would highly recommend it.

best ADU Building
Elron A.

Yelp Verified Review

MNBE did a great job with our garage improvement. They completed the agreed scope of work, schedule and in budget. The team was punctual and kept the work area clean. Thanks Idan and team.

ADU Building estimate
Erika S.

Yelp Verified Review

The MNBE team was amazing. They are extremely professional, and fantastic communication. Their work is thorough and looks amazing. Their attention to detail is terrific. I couldn't be happier, and I'll definitely hire them again.

best ADU Building
Penelope C.

Yelp Verified Review

MNBE provided fantastic customer experience for our adu construction. He was punctual, professional and kept me updated as work progressed. I also appreciate that he was always courteous to deal with. I ended up hiring him for additional work while the adu was being done because he earned my trust and I was very satisfied with that work including room and laundry remodel plus painting of my entire house. Will continue to hire him in the future.

customized ADU Building
Rick S.

Yelp Verified Review

The guys who worked and designed my adu were highly professional. They arrived on time and with no issues whatsoever completed the work and succeeded to create my dream adu. I highly recommend these guys. The guys who worked and designed my adu were amazing! They arrived exactly on time and had no issues at all! After everything, I was admired to see all the work was completed and my dream adu was finished! Using their services, you are sure to get what you asked for .

best ADU Building
Daniel C.

Yelp Verified Review

The work MNBE did for our home is outstanding, they redesign and frame our entire living room and kitchen area. Open concept, vaulted and expose beam. Highly recommended !!

customized ADU Building
Alexander X.

Google Verified Review

MNBE provided great service, 3D design and amazing quality work. we communicated via whatsapp chat group during the project which helped my husband notify while he was out of state. thank you su much for the hard work !

ADU Building around me
Yuval S.

Google Verified Review

MNBE was great! Quick response and competitive pricing. They operated very well and handled issues that arose quickly. Highly recommend this company. Look forward to our next project with them.

professional ADU Building
Mike W.

Yelp Verified Review

Writing a review for my ADU project was a pleasure. The efficiency of the project was impressive, as the speed at which it was completed was remarkable. The cleanliness of the site and the final product was noteworthy, showcasing the attention to detail taken by the team. Furthermore, the employees were professional, polite, and knowledgeable. Overall, the ADU project was an excellent experience, and I would highly recommend it.

ADU Building estimate
Elron A.

Yelp Verified Review

MNBE did a great job with our garage improvement. They completed the agreed scope of work, schedule and in budget. The team was punctual and kept the work area clean. Thanks Idan and team.

nearest ADU Building
Erika S.

Yelp Verified Review

The MNBE team was amazing. They are extremely professional, and fantastic communication. Their work is thorough and looks amazing. Their attention to detail is terrific. I couldn't be happier, and I'll definitely hire them again.

ADU Building contractors
Penelope C.

Yelp Verified Review


Call Now (888) 267-7718
Why Call MNBE Construction?

#1 Adu Building in Seattle

20+ Years Experience

Unparalleled service, quality and professionalism for over 20+ years & counting

Licensed, Bonded, Insured

We have every certificate and license needed to excel in our trade. Our staff is 100% certified & knowledgeable

Locally Owned and Operated

We are local and know all the rules, regulations and processes in California

Certified Project Managers

Our project managers go through rigorous training to ensure quality and safety

On Time, Within Budget

Our professional crew will stick to timelines and the agreed budget

Expert ADU Builders

Our years of experience and knowledge will save you time & money. Book us today!

Your dream remodeling, within reach

Simple Financing Options - Zero Hassle

Get approved on the spot without any paperwork

We finance the whole project, no matter how big or small

We carefully pick our financing partners based on their reliability and low rates

An introductory 0% interest on any new renovation project

Pay nothing upfront allows you to get it done now


Discover the perfect financing solution for your remodeling project with MNBE Construction. We provide tailored options to suit your budget and ensure your dream home becomes a reality. Let us simplify your path to a beautifully renovated space. Contact us now and schedule your free estimate.

THE ABC's of ADU's

Benefits of Building an ADU in Seattle

An accessory dwelling unit (ADU) is a separate residential living area on the same premise as another single-family house. It can be attached to the primary residence or detached completely. The typical size ranges from 600 to 1,200 sqft.

professional ADU Building
Increased Home Value

Upgrading your space is an effective way to add value to your home when it is time to sell. A modern ADU can make your home stand out in Seattle's market

reputable ADU Building
Affordable Housing

ADU's are smaller and therefore cost less to build. They also eliminate the need to pay for additional land, and the utility infrastructure is already standning and can be extended from the main house

ADU Building estimate
ADU is Green

Since the avg. ADU is small, living in one makes a small footprint. We use fewer materials during construction, and you use less energy to heat and cool it.

ADU Building around me
Additional Income

Laws may vary in your neighborhood. ADUs can be used as both short-term rentals or long-term rentals. You can even list it on apps such as AirBnB and get a steady stream of income all year long.

YOU ARE PROTECTED BY OUR QUADRUPLE GUARANTEE

Experience the difference MNBE Construction can make!

BEST
VALUE
 
GUARANTEED
WARRANTY
BEST
CREW
 
GUARANTEED
WARRANTY
BEST
QUALITY
 
GUARANTEED
WARRANTY
365
DAYS
 
WORK & LABOR
WARRANTY

When working with MNBE Construction you will never need to compromise on quality. We know your home is your biggest investment so we ensure you get the best service, the best quality and most of all the best value for your money.

Our team prides itself on our attention to detail, innovative mindset and quality workmanship. We treat your home as if it were our own. Our entire crew is made up of trustworthy and highly-skilled craftsmen licensed in all trades. Expect polite interactions and courteous professionals throughout your service.

MNBE Construction prides itself on customer service. We work closely with our clients to ensure 100% satisfaction. We guarantee our work for up to 365 days. If something goes wrong we’ll come right over and fix it. Period. We are so confident in our workmanship and that is why we are able to offer our customers this Guarantee.

Call Now (888) 267-7718 Call Now
(888) 267-7718
ADU Building in my area
residential ADU Building
customized ADU Building
best ADU Building

Highest Quality Design & Build

MNBE Construction personally manages each project from beginning to end. That includes our 1st meeting, the estimate, the contract, architectural designs if needed and lastly building the project. Design-and-build is the best performing delivery system for both time and money.

  • Singular responsibility. We are accountable for cost, schedule, results.
  • Better quality. We know about today’s innovations in construction and we are able deliver a better project than initially imagined.
  • One call service. For all your concerns. Focus on the project, rather than managing contracts.
  • Dedicated Project Manager. Smooth & successful project with effective communication, guaranteed.
ADU Building contractors
ADU Building company
ADU Building specialist
professional ADU Building

Credibility & Transparency

Choosing MNBE Construction you'll know exactly what your getting for your money. No gimmicks necessary. Our straightforward methods mean we are able to efficiently work within your budget and minimize the surprise factor while maximizing value.

  • Production Team. Our behind the scenes production team consists of dedicated individuals whose sole purpose is to ensure deadlines are met.
  • Unmatched Expertise. We have the knowledge and expertise to deal with any unforeseen circumstances.
  • Fully Compliant. Licensed, Bonded & Insured. All work performed will abide by state and city codes or higher.
  • Decades of Experience. With over 20+ years of experience, we bring a wealth of expertise, knowledge, and craftsmanship.
best ADU Building

Ready to get started?
We can help!

Fill out the form below or call us at (888) 267-7718
and schedule your free consultation!

professional ADU Building
local ADU Building
looks good!
Please enter your name
looks good!
Please enter your phone
looks good!
Please enter your email
looks good!
Please enter your email
looks good!
Please enter a brief job description

* These fields are required.

ADU Building company

Questions? Answers!

Our expert ADU builders have the answers to all of your remodeling questions. Contact us now to speak to a live person

An ADU is a secondary housing unit built on the same property as an existing single-family home. Its benefits include increased rental income, flexible living arrangements, and potential property value appreciation.

Zoning requirements vary by city and county, but California state laws have made it easier to build ADUs. Some common regulations include size limitations, setback requirements, and parking provisions. It's important to consult local authorities for specific guidelines.

California allows three types of ADUs: attached ADUs, detached ADUs, and converted ADUs. Attached ADUs are connected to the primary dwelling, detached ADUs are standalone structures, and converted ADUs are created by converting existing space, such as a garage or basement.

The timeline can vary depending on factors like design complexity and permit processing. Generally, it can take around 4-8 months from the initial design phase to the completion of construction.

ADU construction costs depend on various factors like size, design, materials, and location. On average, you can expect to spend between $150,000 to $400,000 for a new ADU in California.

Financing options include personal savings, home equity loans, construction loans, and refinancing existing mortgages. Additionally, there are state and local programs, such as ADU grant programs and low-interest loans, available in some areas.

ADUs typically require separate connections for electricity, water, and sewer. However, specific requirements may vary based on local regulations and the type of ADU being constructed.

Yes, in seismic zones, additional structural requirements may apply to ensure the ADU's safety during earthquakes. Working with a contractor experienced in seismic design is crucial to meet these specific needs.

Regulations regarding short-term rentals vary by city and county in California. Some jurisdictions allow ADUs to be used as short-term rentals, while others have restrictions or require specific permits. Local ordinances should be consulted for accurate information.

Yes, California offers some incentives to promote ADU construction. These may include reduced permit fees, expedited approval processes, and property tax exemptions for ADUs occupied by family members. It's advisable to consult with a tax professional to understand the specific benefits applicable to your situation.

Don't see your question listed above? Call us now, we are available 24/7

Call us now for immediate response & assistance (888) 267-7718


We Serve Seattle
and all surrounding areas
 (888) 267-7718

We are proudly serving Seattle & surrounding areas For Over 20+ Years

Call now & schedule your free estimate!

Seattle
Arlington
Auburn
Bellevue
Bonney Lake
Bothell
Burien
Cascade-Fairwood
Cottage Lake
Covington
Des Moines
DuPont
East Hill-Meridian
East Renton Highlands
Edgewood
Edmonds
Elk Plain
Everett
Federal Way
Fife
Graham
Inglewood-Finn Hill
Issaquah
Kenmore
Kent
Kirkland
Lacey
Lake Stevens
Lakeland North
Lakewood
Lynnwood
Maltby
Martha Lake
Marysville
Medina
Mercer Island
Mill Creek
Milton
Mirrormont
Mountlake Terrace
Mukilteo
North Creek
Olympia
Orting
Pacific
Parkland
Puyallup
Redmond
Renton
Sammamish
SeaTac
Alderwood Manor
Shoreline
Snohomish
South Hill
Spanaway
Steilacoom
Sumner
Tacoma
Tukwila
Union Hill
University Place
White Center
Woodinville


Licensed & Certified ADU Experts Near You

Fill out the form below or call us at (888) 267-7718
& we will do the rest!

looks good!
Please enter your name
looks good!
Please enter your phone
looks good!
Please enter your email
looks good!
Please enter your email
looks good!
Please enter a brief job description

* These fields are required.

ADU Building experts reputable ADU Building ADU Building company ADU Building company ADU Building in my area professional ADU Building nearest ADU Building ADU Building around me
×

NEED PRICES OVER THE PHONE?

Call now and talk to an ADU expert so we can get you an accurate & realistic estimate custom-tailored on the spot.

GET PRICE NOW
I'll skip for now