Professional ADU Construction In Walnut Creek, CA

Unlock Possibilities With A New ADU For Family, Friends, Or Income

Here To Turn Your Vision For Your Home Into Reality

Kitchens Remodeled
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Bathrooms Remodeled
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Ensure Your Parents' Comfort And Security With An ADU In Walnut Creek

We naturally want our parents to be comfortable and secure, especially after all they’ve done for us. Offering them the opportunity to live close by while maintaining their independence is a loving way to show our appreciation.

In Walnut Creek, accessory dwelling units (ADU) present a thoughtful and practical option, standing as an appealing alternative to traditional adult living facilities or retirement homes. With an ADU, you can keep your parents nearby, ensuring their well-being and independence, all within the warm community of Walnut Creek.

Design an inviting space right in your backyard where cherished memories can continue to flourish with those you hold dear.

Discover the Potential Of Renting Your Walnut Creek ADU

Nestled amid scenic landscapes, open spaces, hiking trails, and breathtaking mountain views, Walnut Creek offers the perfect climate that beckons residents and visitors alike. In this age of experiential travel, many visitors seek authentic local living over traditional hotel stays.

Homeowners in Walnut Creek are tapping into this trend by renting out their accessory dwelling units (ADU) through vacation rental platforms like Airbnb, unlocking a promising source of extra income. We can explore the most suitable options to craft an ideal rental space that aligns with your vision.

Popular Upgrades For ADU Construction In Walnut Creek

Vaulted Ceilings

Elevate your living space and breathe life into your new ADU with vaulted ceilings, opening a realm of sophistication and boundless charm.

Electrical Upgrade (200amp Service)

Empower your new ADU with an electrical upgrade, laying the foundation for modern comforts and innovation while ensuring a safe and efficient environment tailored to your needs.


Infuse your new ADU with the beauty of natural light; adding skylights will brighten your space and create a lively and uplifting environment that connects you with the sky above.

Barn Doors

Embrace both function and charm in your new ADU with barn doors, an elegant choice that saves valuable space and adds a unique touch, blending modern convenience with a hint of rustic appeal.

Upgraded Fixtures

Infuse your new ADU with a touch of luxury by selecting upgraded fixtures, a simple yet profound enhancement that adds value and transforms the ordinary into the extraordinary, making every day feel special.

Trim Packages

Infuse your new ADU with a touch of luxury by selecting upgraded fixtures. This simple yet impactful enhancement adds value and elevates your ADU from ordinary to extraordinary.

ADU Inspiration Gallery

Browse Our Gallery To Get Ideas For Your Home

Committed To Fulfilling Your Vision

We understand the value of your home and appreciate your trust in us.

ADU Construction Pricing

Design Your Ideal ADU

Garage Conversion ADU

Starting At


600-800 sq ft ADU

Starting At


1200 sq ft ADU

Starting At


*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.

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.

View our full, transparent process to learn more.

Your Happiness Is Important To Us

Please read our reviews to find out why homeowners enjoy working with us.

Heather HolmesHeather Holmes
15:04 07 Sep 23
I had the pleasure of working with Joe and his team for my recent home renovation project, and I couldn't be happier with the results. They were consistently on time, delivered high quality work, and maintained excellent communication throughout the entire process. Joe's attention to detail and commitment to customer satisfaction truly set them apart. I highly recommend Joe and his team for any construction project and look forward to working with them again!
Charles MasonCharles Mason
14:39 09 Aug 23
3G Builders and Renovation was able to give us exactly what we had imagined for our bathroom!😁 Our bathroom is absolutely stunning now compared to how outdated it was before. 10/10 would definitely recommend!!
Arthur RoldanArthur Roldan
14:03 09 Aug 23
Love there work A plus great customer service estimate was really good i will recommend to anyone in need of remodel 👍🏼
Joshua MartarellaJoshua Martarella
18:38 05 Jul 23
3G stands behind its work, which is the most important thing to me. They prepare you for what to expect and what may come up during the construction process and keep you abreast of what’s going on during the project so that there’s no surprises, and your expectations for your finished product are met. If you’re looking for a company to keep in regular communication so you are comfortable through out your renovation then this is the company for you.
Anthony LopezAnthony Lopez
03:01 25 Apr 23
3G Builders did a great job on our kitchen remodel! Work was done fast and efficiently and stayed within our budget! Appreciated the attention to detail and craftsman ship! Will definitely be using them for future renovations!
Joyce WuJoyce Wu
03:25 19 Mar 23
Joe and his crew were timely, professional, and kept me updated from start to finish. I always knew what to expect, and ended up with a high-quality remodel at a reasonable price. I’m extremely happy with 3G Builders!

Frequently Asked Questions About ADU Construction In Walnut Creek

Yes, converting an existing structure into an ADU (Accessory Dwelling Unit) in Walnut Creek can be an exciting and practical solution to utilize your property. However, it does require careful consideration of the local building codes and regulations.

At the start of the project, our team will closely work with you to review the existing structure, considering factors like zoning laws, property setbacks, building safety standards, and accessibility requirements. Understanding these elements is crucial to ensure that the transformation aligns with your vision and complies with all local requirements in Walnut Creek.

Building an ADU (Accessory Dwelling Unit) in Walnut Creek, CA, is a valuable investment, both financially and functionally. Here’s why:

  • Increased Property Value: Adding an ADU can significantly increase the overall value of your property. Its additional living space makes your property more attractive to potential buyers if you decide to sell.
  • Potential Rental Income: In California, with a high demand for housing, an ADU can provide a consistent stream of rental income. Whether renting to long-term tenants or through vacation rental services, ADU construction can be a lucrative way to supplement your income.
  • Flexible Use: ADUs offer flexibility in usage. They can serve as a home office, guest suite, or housing for aging family members. Your Walnut Creek ADU can adapt to your changing needs over time, enhancing your lifestyle.
  • Long-Term Living Solutions: For those looking to keep family close, ADU construction can provide a comfortable living solution for aging parents or adult children, keeping loved ones nearby while maintaining privacy and independence.

Positive Return On Investment (ROI): Though the initial cost of building an ADU can be substantial, the potential returns through increased property value and rental income generally outweigh the initial investment, leading to a positive return on investment over time.

Certainly! Our ADU contractors handle all aspects of the permitting process for your ADU construction in Walnut Creek. This process includes researching the specific requirements for your location, preparing all necessary documentation, submitting the permits, and communicating with the relevant local authorities. 

We ensure that your project complies with all local building codes and regulations by taking care of these details. Our goal is to make the process as smooth and hassle-free as possible for you, allowing you to focus on the exciting aspects of your new ADU.

In Walnut Creek, our dedicated design team is here to help you bring your ADU vision to life. Whether you have specific ideas or need guidance in creating a functional and beautiful space, we’ll work closely with you every step of the way. Together, we’ll create an ADU that not only meets your needs but also reflects your personal style and enhances your property. Your dream ADU is just a collaboration away!

Open The Door To A Welcoming ADU