ADU Building on California’s Coast
Elevate your property with an ADU, JADU, secondary suite, or guest house.
What is an ADU and how does the ADU building process work?
Imagine a beautiful self contained living space added to your property. It could be a luxurious retreat for visiting guests, a private sanctuary for a family member, vacation rental, or another source of income*. An ADU is more than a home addition, it’s a proper living space with bathroom and kitchen amenities. Whether you’re looking for an attached or detached accessory dwelling unit, our ADU building services can bring your dream to life on time and on budget with precision and craftsmanship.
Accessory Dwelling Units (ADU) or Junior Accessory Dwelling Units (JADU) have many alternative names, and can often be referred to as guest houses, secondary suites, in-law suites, backyard cottages, or even granny flats. While ADUs and JADUs are slightly different, we have the building experience and local expertise to plan, design, and build your new living space. No matter what you call them, ADUs are the perfect combination of expansion, independence, and connectivity.
Turn existing space into functional living
Unlock Your Property's Potential With an ADU
Ready to take the first step?
California Coast ADU Builder
Custom crafted & expertly delivered
We specialize in building ADUs tailored to your lifestyle. Whether you envision a stylish guest suite, a multi generational living space, or an income generating rental – we will bring your vision to life with precision and passion.
Seamless construction from start to finish
Complete ADU Construction Services for the California Coast
Building an ADU should be an exciting journey, and we’re here to make sure it stays that way. At Frantz Construction, your experience is our product. As an ADU builder known for our personalized service, we begin the process by learning who you are and understanding your vision. We pride ourselves in creating strong relationships and delivering what we promise. When you hire us to build your ADU, you can focus on enjoying the process and looking forward to how you’ll use your new space. From exceptional communication to stunning end results, we aim to achieve an excellent experience that you’ll never forget.
We don’t just build homes, we build trust
Frantz Construction brings decades of expertise to every ADU construction project. We love turning your dream into a reality—precise, elevated and beautiful.
Exceptional Quality & Seamless Collaboration
Master of All Trades
Integrated Project Delivery Approach
A Proven Process
Areas We Serve
We’re proud to offer ADU building services in the following Coastal communities:
Let's build something amazing together.
We love serving California Coast homeowners with exceptional residential construction services built on integrity and craftsmanship. Let us create your dream home with you.
