5 Top Features in Orange County ADUs

As accessory dwelling units (ADUs) continue to rise in popularity throughout Southern California, homeowners in Orange County are looking for ways to maximize function, comfort, and value in their backyard homes. From smart ADU interior options to outdoor living spaces, customizing an accessory dwelling unit in Orange County has never been more exciting.

Let’s take a look at the top five most in-demand ADU features Orange County homeowners are including in their designs.

1. Full Kitchens and Laundry Facilities

One of the most popular ADU amenities is a full kitchen and laundry setup. Not only do these additions increase the functionality of the unit, but they also add significant value. Yes, you can add a kitchen and laundry to your ADU, and many homeowners in Orange County do. This allows the ADU to be used as a true independent living space for guests, renters, or family members. Click through our Joann project to see a gorgeous kitchen and laundry combo, and check out the Cedar album for a more upgraded, independent laundry space as well as a custom built kitchen.

2. Outdoor Living Spaces

In sunny Southern California, outdoor features like patios, decks, and covered lounges are essential. Many Orange County ADU design ideas now include sliding doors that lead to private patios or compact decks, creating a seamless indoor-outdoor lifestyle. Keep in mind, while you can add these features, local regulations may dictate size, placement, and distance from property lines, so it’s important to check with the city before building. Take a look at our Pinterest boards for some inspiration!

3. Multi-Use Great Rooms

ADU design trends are all about flexibility. Open-concept great rooms that combine living, dining, and kitchen areas into one efficient space are a top pick for those customizing an accessory dwelling unit. These layouts make small spaces feel bigger and more inviting—a win-win for style and function. Check out our latest project with a stunning multi-use great room here!

4. Built-In Storage Solutions

Maximizing space is key in any ADU, and built-in storage is one of the smartest ADU interior options out there. From under-bed drawers to custom closet systems and floating shelves, Orange County ADU design ideas are getting creative to keep things clutter-free. 

5. Energy-Efficient Fixtures & Smart Tech

Sustainability is high on the list for many homeowners. LED lighting, Energy Star appliances, tankless water heaters, and smart thermostats are some of the ADU features Orange County residents are prioritizing. These upgrades not only reduce utility bills but also make the home more attractive to future tenants or buyers. Pro Tip : In California, solar is now required on all new construction. View more information here.

Final Thoughts

Whether you're building a rental unit, a guest house, or a home for extended family, understanding the latest ADU design trends and regulations in Orange County will help you create a space that’s beautiful, functional, and valuable. View our portfolio here!