ADU And DADU Construction In Seattle

Create A New Suite Comfortable Enough For Your Parents And High-End Enough To Rent Out For Supplemental Income

Josh's consistent communication was top notch and I always felt I knew what to expect. The work was A+ quality and looks fantastic. I can't recommend Lolark enough!

- Amy Lisa Anderson Gaber

Provide Your Parents With A Private, Secure Place To Live In Seattle

We all want the best for our parents. After how they cared for us for years, many of us want to return the love by ensuring they have the best, safest place to reside in their later years.

Accessory dwelling units (ADU) and detached accessory dwelling units (DADU) provide a compassionate and sensible alternative to Seattle’s adult living facilities and retirement homes. This way, your parents are close enough that you can help care for them while allowing them to maintain their independence.

Create a comfortable place nearby where you and your loved ones can continue creating beautiful memories together.

Popular Upgrades For Your ADU Or DADU

Secondary Kitchen

With a kitchen, tenants can enjoy greater independence and privacy while saving money by preparing their meals at home. It can also add value to the property and increase its marketability.


Provide the necessary amenities for convenient and comfortable living by adding a bathroom to your ADU or DADU.

Private Access

With a separate entrance to your ADU or DADU, you can enjoy greater privacy and autonomy while using the unit.

Decks And Patio Covers

Add aesthetic appeal and provide guests with an additional space to relax and entertain.

Upgraded Siding

Increase your units' curb appeal and relax, knowing your guests have more protection against the elements.

Barn Door

Add charm by installing a space-saving barn door to the interior or exterior of your ADU or DADU.

Upgraded Window Packages

Upgrading your windows will improve the beauty and comfort of your ADU or DADU. Guests will love the increased natural light and decreased outside noise.

Loft Area

Take advantage of all the space in your ADU or DADU with a delightful loft area to accommodate more guests.

Rent Out Your Seattle ADU Or DADU

Seattle is a popular tourist destination with attractions like the Space Needle, Pike Place Market, and the Museum of Pop Culture. And we live in an era where contemporary travelers want to skip the traditional hotel experience and make genuine local connections instead.

Many Seattle homeowners have begun renting their ADU or DADU with vacation rental services like Airbnb to enjoy an additional income stream.

We can help you create the perfect rental space by converting part of your home (like a garage), extending a part of your home, or building an entirely new accessory dwelling unit. Let’s get started on the best option for you!

Custom Built ADU With A Deck

Our ADU And DADU Gallery

Browse images of our work and get inspiration for your project.

Dedicated to Crafting Your Perfect Space

Let us work with you to create a one-of-a-kind space that will be the backdrop for making cherished memories.

3 Year Warranty

We believe in our work and want you to feel confident in our services.

Communication Is Key

We use clear communication and are transparent with services and pricing. Responsiveness and professionalism are two of the most used words to describe us in reviews.

Satisfaction Is Our Top Priority

With 40+ years of construction experience, we realize that people matter most. We aim to ensure clients take ownership of their space, feel proud of it, and enjoy life in a home they truly love.

ADU/DADU Pricing

Start dreaming of your new space

ADU Pricing

Starting At

$320–420/sq ft


DADU Pricing

Starting At

$650–750/sq ft


*Prices are averages and may vary depending on the size of your project and the materials used. You will get an exact quote for your unique project after the on-site consultation.

ADU And DADU Cost Calculator

When planning your ADU or DADU, it’s important to consider all the factors that could affect your cost so you stay within your budget.  Below are examples of upgrades that could influence the price of your ADU/DADU:

Use our calculator to estimate what your ADU or DADU will cost. Please reach out to us with any questions—we’re here to help.

Choose An Option To Calculate

150 SQFT

Your Rough Estimate Is:


A Process

Designed For You

We want to learn about your vision for your home.
Once you fill out our contact form, we will follow up with a phone consultation to discuss your project more in-depth.

To view our full, transparent process, click the button below.

Client Reviews

Please read our reviews and discover why our Seattle clients love working with us.

Lisa Gehret
Lisa Gehret
Josh and his team recently completed a second story addition on my craftsman home, and the results turned out great. The project was very complex as it involved foundation work, earthquake retrofitting, structural reinforcement work in addition the second story completion work. Josh was very responsive and communicated very well throughout the entire process as issues inevitably arose. His problem-solving judgment allowed them to navigate any unexpected issues that arose during the construction. Josh's honesty throughout the entire process was a refreshing change from past experiences I've had with other contractors. Overall, I would highly recommend Lolark to anyone looking for a reliable and skilled team for their home renovation needs.
Graham Mills
Graham Mills
I was very fortunate to have found Lolark Contractors and to have had the chance to work with Josh and his team. My home remodel project required us to install structural beams to reinforce the second story floor joists. We also added a window in one of the living room walls which required us to remove all of the existing siding and sheathing and replace it to bring it up to code (the house is 120 yrs old). Throughout the process Josh was very professional and responsive. He made himself available to answer any of my questions and made sure we were both aligned on what plans were before they started work. His team did a great job with the installation, they kept the job site clean, and were a pleasure to talk to. I will definitely keep Lolark in mind for future projects.
Lori Salin
Lori Salin
Josh and crew recently completed a bathroom remodel and laundry room upgrade at my park. It was a pleasure working with Josh and his team. From start to finish, Josh was extremely responsive to any questions, needs, or change orders. We are very happy with the quality of work and appreciate all their efforts.
Barry M Loonam
Barry M Loonam
Josh and his crews updated our 2 bathrooms with new showers from DaBella. Professional and yet friendly and personal and always happy to explain the process or answer questions. They kept to the one day completion goal and did an amazing job of clean-up including the garage that they had used as a staging and work area. 5+ Stars and we asked him to quote even more work…
Lynn Rains
Lynn Rains
Outstanding customer service from initial consultation to finished project! Each employee was careful, concerned and hardworking. My home was left neat before they left each day. I am happy to say l Lorlark Construction provided the kind of client service mentioned in their goal statement.
N Chambers
N Chambers
Extremely lucky to have found Josh & crew!! Wow! So professional & responsive. Absolutely thrilled with great finished project. These guys know their craft!! And left the premises spotless!! Aristokraft cabinet installers as well as general projects large & small. Recommended them to my cousin. Full marks! Thank you, Josh!! So impressed.
Tim Lister
Tim Lister
They installed a bathtub and shower in my house. They were clean and professional working hard to finish in a single day. They kept me updated on all the progress and asked for my input on positioning and shelves and safety bars.
Lance Garza
Lance Garza
Josh and his crew installed a beautiful walkin shower in our house. They came in organized, clean and kind. I have all the confidence in calling them back for the next job.
Kelly King
Kelly King
Thank you Josh and Crew. They are a great bunch. They have completed several projects on my park. From residing my office buildings to two big projects on my Lone Tree Lodge. They are very professional. The job site is always clean and organized. I have more projects and look forward to working this team again!

Frequently Asked Questions For ADU And DADU Construction

You May Also like

Rare Scheduling Opportunity!

Book your project this month to take advantage of priority scheduling and free material upgrades!