In Dublin, where rapid growth meets suburban charm, homeowners are seeking ways to add space, flexibility, and value to their properties without moving. One of the most effective and future-ready solutions is building an Accessory Dwelling Unit (ADU).

Whether it’s for multigenerational living, long-term rentals, or creating a private home office, an ADU enhances both your lifestyle and property value. At Royalty Builders, we specialize in designing and building high-quality, fully permitted ADUs in Dublin. From planning and permits to construction and final inspection—we’ve got it covered.

Types of ADUs We Build in Dublin

No two families—or properties—are exactly alike. That’s why we offer multiple ADU styles tailored to your home’s layout, your goals, and your lot’s unique characteristics.

We specialize in:

• Detached ADUs – Ideal for private rentals, guest homes, or fully independent units

• Attached ADUs – Additions that integrate with your main home, great for family living

• Garage Conversions – A cost-effective option to turn unused space into a livable unit

• Above-Garage ADUs – Perfect for maximizing smaller lots with vertical square footage

• Basement ADUs – Convert underutilized lower levels into beautiful, legal spaces

Every ADU is custom designed to meet both your vision and Dublin’s building requirements.

Full-Service ADU Design + Build in Dublin

At Royalty Builders, we offer a streamlined design-build experience—meaning you work with one trusted team from the first sketch to final inspection. No hand-offs, no headaches, no surprises.

Our services include:

• Property analysis and zoning research

• Custom design and 3D architectural visualization

• Engineering, structural plans, and Title 24 documentation

• Permit submission and coordination with the City of Dublin

• Complete construction and finishing work

• Final inspections, utility setup, and occupancy certification

Our approach keeps your project on time, on budget, and aligned with your goals every step of the way.

How Much Does It Cost to Build an ADU in Dublin?

The cost of building an ADU in Dublin depends on the size, design complexity, and condition of your existing property. Whether you’re converting a garage or building a new detached unit, we provide clear, transparent pricing at every stage.

Typical ADU pricing in Dublin:

• Garage Conversion: $120,000 – $170,000

• Attached ADU: $180,000 – $290,000

• Detached ADU: $200,000 – $350,000+

• Above-Garage ADU: $220,000 – $360,000

We also help you explore financing options, including home equity strategies and renovation loans tailored for ADU projects.

Permits for ADU Construction in Dublin – What You Need to Know

Dublin supports ADU development under California’s updated housing laws, but specific requirements for lot size, setbacks, height, and parking still apply. Fortunately, our team is highly familiar with the City of Dublin’s permitting process.

We manage:

• Site assessments and zoning compliance

• Permit package preparation and plan submittals

• Responses to plan check comments and revisions

• Coordination with city inspectors and utility providers

• Final sign-off and occupancy certification

Royalty Builders handles the red tape so you can focus on your vision—not the paperwork.

Why Build an ADU in Dublin?

Dublin is one of the fastest-growing cities in the Tri-Valley region, offering top-rated schools, family-friendly neighborhoods, and a strong housing market. With home prices steadily rising and demand for flexible living solutions increasing, now is the perfect time to invest in an ADU.

Top reasons Dublin homeowners are building ADUs:

• 🏡 Private space for family, guests, or caregivers

• 💼 Dedicated office or studio space close to home

• 💸 Generate rental income in a high-demand area

• 📈 Increase property value and future resale potential

• 🔄 Prepare for multigenerational living or aging in place

With supportive city policies and a trusted builder by your side, your Dublin ADU project is closer than you think.

Frequently Asked Questions – ADUs in Dublin, CA

Q: How large can an ADU be in Dublin?
A: Detached ADUs can typically be up to 1,200 sq. ft., depending on your lot size and zoning. We’ll help determine your specific limits.

Q: Is additional parking required for an ADU in Dublin?
A: Often not—especially if the ADU is near transit or converted from an existing structure. We’ll confirm based on your address.

Q: How long does the ADU process take?
A: Most projects take 6–10 months, including planning, permitting, and construction. We’ll give you a detailed timeline based on your design.

Q: Can I rent out my ADU in Dublin?
A: Yes! ADUs can be rented as long-term housing. We’ll ensure your unit meets all code requirements for legal occupancy.

Contact Royalty Builders – Dublin’s Trusted ADU Contractor

If you’re ready to expand your space, increase your home’s value, and create lasting flexibility, Royalty Builders is here to help. We’ve completed ADUs all across the East Bay—and Dublin is one of our favorite cities to build in.

📞 Contact us today and schedule your free ADU consultation in Dublin.

Build smart. Build beautiful. Build with Royalty Builders.