ADUs | South Bay Area + Santa Clara County

If you need to expand your Santa Clara County home, but don’t want to add on to your home, an Accessory Dwelling Unit (ADU) is a great way to achieve flexible living arrangements with a bit of space. Heartwood Residential Design + Build offers tailored ADU solutions, ensuring your project complies with local regulations and meets your specific needs.

We answer your questions about what an ADU actually is, the regulatory process, and what is possible in the state of California. When you partner with Heartwood Design + Build, you partner with someone who understands Santa Clara County regulations, your needs, and the entire building process.

South Bay Area and Santa Clara County ADU Builders

Our friendly, experienced team simplifies the process by managing both design and construction. We specialize in creating unique ADUs, from detached units to garage conversions and attached structures. Our design-build process ensures your project is smooth and cohesive, delivering a beautiful, functional addition to your home.

Understanding Santa Clara County ADU requirements can be challenging. We’re experts in local regulations, ensuring your ADU project meets all zoning laws, setback requirements, and more. Heartwood Residential Design + Build can tell you what’s allowed in your ADU and what's not, and what exactly a junior ADU is.

We're not just ADU builders; our wide range of services allows you to choose what's right for your family.

Heartwood Residential Design + Build: Our Process

Building an ADU in the South Bay Area is an investment in your property and your family. The costs are impacted by the design and style of the ADU and the materials you choose. The cost ranges Heartwood Residential Design + Build provides are influenced by design complexity, size, and material choices. We provide transparent estimates, helping you budget effectively without compromising on quality.

At Heartwood Residential Design + Build, our process allows you to know that not only will we build an ADU that matches your family's needs, but also one that follows the rules and regulations of Santa Clara County to the letter.

Ready to enhance your property with a custom ADU? Contact Heartwood Residential Design + Build to schedule a consultation. Let us guide you through the process and create an ADU that perfectly suits your lifestyle and adds value to your home.

Frequently Asked ADU Building Questions

How Much Does an ADU Cost in the South Bay Area?

The range for an ADU in the South Bay Area depends on the size of the ADU, the materials you use, and the design of the project.

While many people think they're a cheap addition, in reality, it takes a good deal of time and organization to create an ADU that passes zoning regulations and one that you want to live in.

The beauty of an ADU is in the flexibility it provides.

Do I Need a Permit to Build an ADU in California?

There's nothing so sure as death, taxes, and permits in California.

In Santa Clara County, you do need a permit to build an ADU. Our team is quite familiar with the process, which helps to make it an easier and quicker process for you.

What Is the Difference Between an ADU and a Room Addition?

An ADU is not just a bonus room unattached to your home.

In Santa Clara County, an ADU must have its own living, sleeping, eating, cooking, and sanitation facilities, including a full kitchen and bathroom.

Whereas, in a room addition, an additional room is just a room.

What is the Minimum Size for an ADU in California?

The minimum size of an ADU in California varies from county to county. However, in Santa Clara County, a junior ADU can be as small as 500 square feet.