Services · Winlock

ADUs in Winlock, WA

We handle permits and construction of accessory dwelling units with foundations, delivering a complete additional living space on your property.

ADUs in Winlock, WA by Genesis Buildings

Add Space, Add Value with an ADU

An accessory dwelling unit (ADU) is one of the smartest ways to make your property work harder for you—whether you're creating a comfortable place for aging parents, a private space for adult kids, or a rental that helps offset your mortgage. At Genesis Buildings, we design, permit, and build ADUs across the Pacific Northwest with real foundations and lasting quality. From your first questions to the final walkthrough, we handle the details so you can focus on how you'll use the new space.

Why choose Genesis Buildings

  • We handle permitting from the start. ADUs come with their own set of local rules, setbacks, and approvals. We know how to navigate the process so your project moves forward without costly surprises or delays.
  • Built on real foundations. Our ADUs are built to last, with proper foundations that add genuine, long-term value to your property—not temporary structures you'll outgrow.
  • One team, start to finish. As your general contractor, we manage the entire build. You get a single point of contact instead of juggling multiple subcontractors and schedules.
  • Straightforward, honest communication. We'll give you clear answers about what your project involves, what to expect, and where things stand at every stage.

Our ADUs process

  1. Talk it through. Call us at (360) 318-3984 to describe your property, your goals, and your budget. We'll help you understand what's possible on your lot.
  2. Design and plan. We work with you to shape a layout and finishes that fit how you'll actually live—whether that's a compact studio or a full one-bedroom with a kitchen and bath.
  3. Permit and approve. We prepare and submit the paperwork, coordinate with local officials, and secure the approvals your ADU needs.
  4. Build with care. Our crew pours the foundation and constructs your ADU with attention to quality and detail, keeping you updated as work progresses.
  5. Final walkthrough and handoff. We walk the finished space with you, answer your questions, and make sure everything is ready before you move in or welcome a tenant.

Serving the Pacific Northwest

Genesis Buildings is proud to build ADUs across the Pacific Northwest. We understand the local landscape, the properties, and the people who call this area home—and we bring that familiarity to every project we take on. Whether you're in town or just outside it, we're ready to help you plan an ADU that fits your property and your family. Call (360) 318-3984 to talk through your project and take the first step toward adding valuable, functional space to your home.

Frequently Asked Questions

What is an ADU and can you build one on my property?

An ADU (Accessory Dwelling Unit) is a secondary living space on your lot, such as a backyard cottage or in-law suite. As a general contractor serving the Pacific Northwest, Genesis Buildings permits, builds, and delivers ADUs with foundations. Call (360) 318-3984 to see if your property qualifies.

Do you handle the permits for my ADU?

Yes. We manage the full permitting process along with building and delivery, so you don't have to navigate local requirements alone. Call (360) 318-3984 to start your ADU project in the Pacific Northwest.

Does the ADU come with a foundation?

Yes, we build and deliver ADUs with foundations, ensuring a permanent, code-compliant structure. Call (360) 318-3984 to discuss foundation options for your site.

How long does it take to build an ADU?

Timelines vary based on design, permitting, and site conditions. Once we review your project details, we can provide a realistic schedule. Call (360) 318-3984 to discuss your ADU timeline.

What can I use an ADU for?

ADUs are versatile and can serve as rental units, guest quarters, home offices, or housing for family members. We'll help you design one that fits your needs. Call (360) 318-3984 to explore your options in the Pacific Northwest.

What Our Customers Say

4.8 average from 42 reviews

  • Kylee Hintz
    ★★★★★

    100% would have never purchased my 3 sheds if it weren't for Crissy Winward's excellent customer service! Crissy designed two outdoor dog kennels for me in 2024 - custom designed, work efficiently here two years later. My proudest purchase(s) to date. When I had a problem, Crissy was there and sent out two service men to repair slight damages from a design flaw in the first few months. Super thankful for the builders and repairmen as well for their punctuality, urgency, and professionalism. You were great! From purchase to aftercare, everything was seamless thanks to Crissy's efficient networking and communication. I recently just purchased an RTO 10x12 shed that matches my buildings for a tack room. Again, would not have even known about it had Crissy not hand selected it for me. I was specifically looking for something ready to deliver, with a certain budget in mind for my new tack room. I hadn't even reached out - it was like Crissy read my mind and sent it to me on a random afternoon! My relationship built with Crissy during the last two years will last a lifetime and I will be a lifelong customer thanks to her! Thank you, Genesis Outbuildings for your awesome sheds!

  • Bobby Ball
    ★★★★★

    Genesis Building built a 24x36 pole barn with concrete slab for me. My experience with them was great from start to finish. They were easy to work with on the details and quick to address any concerns I had with the process or product. Their engineered plan passed through the county permit process with no problems and the quality of materials used was great. Their crew was very engaging and gave great attention to detail in both the construction and in keeping the construction site clean. Josh was my primary point of contact and oversaw the job. He is great at communicating and kept me in the loop throughout the build. He was able to answer all my questions and followed through on everything he said. They definitely went the extra mile for me and I am thrilled with the final product which will be my dream wood shop! I have no reservation in recommending them.

  • Melissa Toney
    ★★★★★

    Joas was absolutely wonderful to work with. I had tried other companies who were trying to force me to buy (prior to having a permit in hand) or else they would not honor their quote provided days before. I could not believe how patient and understanding he was with all my last minute changes. The county gave me a really hard time getting my permit so I opted to go below 200 sq ft and actually saved a HUGE amount doing so. So again there was another change and Joas never batted an eye. He took so much time providing me with multiple quotes in different sizes to get me as close to my budget as possible. He responded quickly and even on his own private time. I truly appreciate him and I will definitely go through him for my next building in the VERY near future. TJ delivered my building today and he was also a pleasure to work with. My building had taller walls so it wouldn’t fit under my powerlines but that didn’t stop him. He unloaded the building at the bottom of my nearly 900 foot driveway and used a really cool machine to drive it to the very top. He made things look EASY! He was polite, kind, and VERY easy to work with. I cannot thank him enough for doing such a great job. It was a great experience working with these family men and I will NEVER go through anyone else because I just do not think any other company can compare. Thank you from the bottom of my heart for turning my dreams of working from home into a reality. I cannot tell you how many happy pups there will be getting massages in this BEAUTIFUL building!

  • James H
    ★★★★★

    I recently had a shed moved by TJ. His communication was great, he showed up on time (with a really cool trailer), did a great job loading my shed and moving it to my new house. My shed was not a fantastic or particularly sturdy shed, but he managed to move it without damaging anything. The price was very fair and much less than another company I spoke to. I may not ever need another shed moved, but if I do Genesis buildings will be my first call. I would also not hesitate to call them for a new shed in the future.

  • Mr. McMartín
    ★★★★★

    Daryl and the whole team at Genesis were a pleasure to deal with! I’m in the construction industry and they were very professional to deal with, it was exactly 3 weeks from placing the order to delivery. The quality was also way above our expectations. The delivery went so smoothly and quickly… I can’t say enough about how great the whole experience was.

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