Golden State ADUs — Full-Service ADU Builder in Sacramento, California
Golden State ADUs (GSADUs) is a full-service design-build ADU contractor based in Sacramento, California. As a subsidiary of Golden State Design & Engineering, they provide comprehensive design, permitting, and construction services for Accessory Dwelling Units (ADUs) throughout the state of California. With over 10 years of collected experience and more than 100 successfully executed projects, they have established themselves as a trusted accessory dwelling unit builder committed to exceptional work quality.
Their purpose is to enrich lives by transforming spaces. They work to unlock the potential of every property, creating versatile, elegant, and functional ADUs that enhance living experiences, generate wealth, and foster multigenerational connections. Whether clients are looking for a detached ADU builder, an in-law suite builder, or a backyard cottage builder, GSADUs offers a one-stop-shop approach that eliminates the need for multi-firm coordination.
Their Services: Design, Permitting, and Construction
GSADUs handles every phase of an ADU project from start to finish. Their in-house design and engineering team creates ADU plans specifically tailored to meet each client's unique needs. They also simplify the permitting process through expert permit coordination services, managing the complexities of local regulations on behalf of their clients.
During construction, they oversee every detail to ensure the finished unit meets the client's specifications. The project types they handle include:
- Detached ADUs
- Custom ADUs
- Tiny Homes
- Secondary Units
- In-Law Suites
- Guest Houses
They also offer comprehensive design packages tailored to each project, whether the goal is a backyard retreat, a rental property, or a space for extended family members.
Their typical project process follows four key stages:
- Getting Started — 1 to 2 weeks
- Design — 4 to 8 weeks
- Permitting — 4 to 8 weeks
- Construction — 4 to 8 weeks
Why Choose Golden State ADUs as Your ADU Contractor
What sets GSADUs apart as an ADU builder is their multi-disciplinary, client-centered approach. Their team brings a strong design and engineering background to every project, offering practical problem-solving solutions grounded in core industry competence. They are known for their responsiveness — answering calls, replying to emails, and providing continuous project updates throughout the process.
Their core values guide every project they take on:
- Excellence — delivering superior design and construction solutions that surpass expectations
- Collaboration — building strong partnerships with clients and stakeholders
- Innovation — embracing forward-thinking technologies and approaches
- Integrity — maintaining transparency and ethical practices in all interactions
- Client-Centricity — listening attentively and tailoring solutions to each client's needs
- Sustainability — integrating environmentally responsible solutions into every design
- Value Engineering — maximizing budget efficiency through smart design and planning
For those considering building an ADU in California, GSADUs also provides helpful guidance on key questions such as maximum ADU size allowances, garage attachment options, permitting timelines, and how to reduce or waive development impact fees. Per California state law, ADUs equal to or less than 749 square feet may qualify for a waiver of development impact fees — a significant cost-saving opportunity that their team can help clients navigate.
Golden State ADUs is a capable and experienced granny flat builder and accessory dwelling unit builder serving homeowners across California with a commitment to quality, innovation, and lasting community impact.