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. Golden State ADUs works 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 tailored solutions to meet a wide range of residential needs.
Their Services: Design, Permitting, and Construction
Golden State ADUs operates as a true one-stop shop for ADU development. Their in-house design and engineering team creates ADU plans specifically tailored to each client's needs, eliminating the complexity of coordinating between multiple firms. Their services cover three core areas:
- Design: Custom ADU design developed by an in-house team with a strong engineering background.
- Permitting: Expert permit coordination services to simplify and streamline the approval process.
- Construction: Full oversight of construction from start to finish, ensuring every detail meets client specifications.
The types of projects they handle include detached ADUs, custom ADUs, tiny homes, secondary units, in-law suites, and guest houses. Their comprehensive design packages are tailored to each unique project, whether the goal is a backyard retreat, a rental income property, or a space for extended family members.
Their process is structured and transparent, typically broken into four stages: Getting Started (1–2 weeks), Design (4–8 weeks), Permitting (4–8 weeks), and Construction (4–8 weeks). In total, clients can generally expect 3–5 months for plans and permitting, and 3–4 months for construction, depending on the size and complexity of the ADU.
Why Choose Golden State ADUs as Your ADU Contractor
What sets Golden State ADUs apart as an ADU builder is their multi-disciplinary, client-centered approach. They consolidate design and engineering expertise under one roof, reducing the need for multi-firm coordination and keeping projects efficient and cohesive. 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 unique needs.
- Sustainability — Integrating environmentally responsible solutions into every design.
- Value Engineering — Maximizing budget efficiency through smart design and programming.
On the topic of ADU regulations, Golden State ADUs notes that the general maximum size for an ADU is 1,200 square feet, though this can vary based on local city regulations, setbacks, and the size of the primary dwelling. Importantly, per California State law, if an ADU is equal to or less than 749 square feet, development impact fees are waived — a significant cost-saving opportunity for homeowners.
Golden State ADUs is responsive, knowledgeable, and deeply committed to helping California homeowners navigate the ADU process from concept to completion. Their team answers calls, responds to emails promptly, and provides continuous project updates throughout every phase of development.