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ADU Contractors in Oakland Hills
Beautifully designed accessory dwelling unit in Oakland Hills, built to complement sloped lots, scenic properties, and unique residential settings.
4.9/5 rating from 56+ online reviews.

Expert ADU Builders in Oakland Hills
Larger lots, elevated views, mature landscapes, and distinct architectural styles create the perfect setting for a thoughtfully designed ADU in Oakland Hills. The challenge is ensuring the new structure feels connected to the property rather than added onto it.
That’s where Sidex comes in. As experienced ADU contractors in Oakland Hills, we design and build custom spaces that work with the natural characteristics of each site. Whether you’re planning a detached retreat, a hillside cottage, or a fully customized ADU in Oakland Hills, our team focuses on practical design, quality construction, and seamless integration.
ADU Services in Oakland Hills

Detached ADUs

Attached ADUs

Granny Flats

Backyard Cottages

In-Law Suites

Garage Conversions

Prefab ADUs
ADU Services in Oakland Hills

Detached ADUs

Attached ADUs

Granny Flats

Backyard Cottages

In-Law Suites

Garage Conversions

Prefab ADUs
ADU Services in Oakland Hills

In-Law
Suites

Garage Conversions

Prefab ADUs
Crafting Premium Backyard Living Spaces in Oakland Hills
Our gallery highlights outdoor construction projects, showcasing structural expertise that define our ADUs in Oakland Hills and the Bay Area. See how thoughtful construction transforms challenging properties into highly functional living environments.
EXCELLENT Based on 38 reviews Posted on Google Tatyana PTrustindex verifies that the original source of the review is Google. Posted on Google Vivi BabenkoTrustindex verifies that the original source of the review is Google. My grandparents backyard deck had taken a beating over the years, especially from all the snow and rough weather. It was definitely time for some love, and Sidex really came through for! What stood out most was the crew and how they treated my grandparents like family and were genuinely so kind throughout the whole project. Really glad we chose them!Posted on Google Sara YarmolyukTrustindex verifies that the original source of the review is Google. Extremely helpful employees and truly have honest work and craftsmanship.Posted on Google Valya StepanovTrustindex verifies that the original source of the review is Google. I can’t say enough good things about Sidex Siding & Decking! From the first phone call to the final walkthrough, the entire experience was outstanding. The team was professional, punctual, and incredibly knowledgeable. They took the time to answer all of my questions, communicated clearly throughout the project, and paid close attention to every detail. The quality of their workmanship exceeded my expectations, and the finished deck looks absolutely amazing. They treated my home with respect, kept the work area clean, and completed everything on schedule. It’s rare to find a company that truly delivers on its promises, but Sidex Siding & Decking did exactly that. If you’re looking for a trustworthy, skilled, and reliable contractor, I highly recommend them. I couldn’t be happier with the results and will definitely use them again for future projects. Five stars all the way!Posted on Google Max GatsmanyukTrustindex verifies that the original source of the review is Google. Fast and professionalPosted on Google Vince CartersonTrustindex verifies that the original source of the review is Google. Andrey and Nate were very helpful, would work with Sidex again. I am glad everything went as smooth as they said it would.Posted on Google Sava VashchukTrustindex verifies that the original source of the review is Google. We recently hired SIDEX to completely replace the old, worn-out siding on our home and we could not be happier with the results. They gave us a highly competitive and transparent quote with no hidden fees.Posted on Google Rita SnizhkoTrustindex verifies that the original source of the review is Google. We couldn’t be happier with how our new deck turned out! From the very beginning, the whole process was so easy, and the Sidex Construction team was amazing to work with. They really listened to what we wanted and brought our vision to life exactly how we imagined it! Our outdoor space has completely transformed, and it’s now one of our favorite places to relax. It’s exactly what we had in mind for our home, and we honestly couldn’t have asked for a better result. We highly recommend Sidex Construction to anyone looking for quality work!Posted on Google Amanda KilgoreTrustindex verifies that the original source of the review is Google. Had a great experience working with Sidex. Nate was super helpful during the in-person site visit and took the time to explain everything clearly without making us feel rushed or pressured. Andrey was also very helpful with scheduling and keeping everything organized throughout the process. The whole team was professional, easy to work with, and communication was solid from start to finish. Really appreciated how smooth everything went. Would definitely recommend Sidex to anyone looking for quality work and good customer service.Posted on Google Marjorie SiemsenTrustindex verifies that the original source of the review is Google. Tim did a wonderful job fixing a leak on my skylight windows. Totally professional and very detailed in his work. I would definitely consider him for future work!
FAQs Regarding ADU Construction in Oakland Hills
What is an ADU?
An ADU, or an accessory dwelling unit is a secondary residential structure located on the same lot as a primary residence.
Can you build on sloped Oakland Hills properties?
Yes. Many ADUs in Oakland Hills involve hillside construction, and our team designs solutions tailored to unique site conditions.
What types of ADUs do you build?
We build detached ADUs, attached ADUs, garage conversions, backyard cottages, granny flats, and prefab ADUs.
Do you help with planning and permits?
Absolutely. We assist homeowners throughout planning, approvals, design coordination, and construction.
Why choose Sidex for an ADU project?
Our experienced ADU builders in Oakland Hills combine thoughtful design, quality construction, and local expertise to create spaces built around each property’s unique characteristics.
Will an ADU increase my property's functionality?
A professionally designed ADU in Oakland Hills can create additional usable space while improving the overall versatility of your property.




