Tucked in the rolling East Bay hills, Moraga offers peace, privacy, and spacious living—making it the perfect place to build an Accessory Dwelling Unit (ADU). Whether you’re creating space for family, planning a home office, or adding a legal rental unit, an ADU lets you expand your living potential without leaving the town you love.

At Royalty Builders, we bring years of experience designing and building custom ADUs tailored to Moraga’s unique topography, zoning, and community values. From hillside lots to quiet cul-de-sacs, we deliver beautiful, code-compliant spaces from start to finish.

Types of ADUs We Build in Moraga

Moraga’s generous lot sizes and natural surroundings are ideal for thoughtfully designed ADUs. Whether your goal is privacy, rental income, or future flexibility, we’ll help you choose the right type of unit.

We build:

• Detached ADUs – Private backyard cottages for guests, caregivers, or long-term tenants

• Attached ADUs – Additions that blend seamlessly with your home’s architecture

• Garage Conversions – A cost-effective way to gain livable space without expanding your footprint

• Above-Garage ADUs – Great for properties with limited flat yard space

• Basement ADUs – Ideal for split-level homes or those with daylight basements

Every design is tailored to your goals and meets Town of Moraga building codes and Contra Costa County guidelines.

Full-Service ADU Design + Build in Moraga

At Royalty Builders, we use a streamlined design-build process that covers everything in-house—from architectural plans and engineering to permits and construction. You get a single point of contact and a cohesive team throughout.

Our full-service approach includes:

• On-site property and zoning assessment

• Custom architectural design and 3D renderings

• Engineering and Title 24 energy compliance

• Full permitting with the Town of Moraga and Contra Costa County

• Skilled construction and project management

• Final inspection, utility hookup, and occupancy certification

We understand Moraga’s planning nuances, including hillside overlays, open space restrictions, and fire zone compliance.

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

Building an ADU in Moraga is a valuable investment—and our pricing is clear, competitive, and aligned with your goals. We offer full transparency and a detailed proposal for each project.

Typical ADU pricing in Moraga:

• Garage Conversion: $130,000 – $180,000

• Attached ADU: $190,000 – $300,000

• Detached ADU: $220,000 – $375,000+

• Above-Garage ADU: $240,000 – $400,000+

We also assist with financing options, including renovation loans and home equity programs tailored for ADU construction.

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

Moraga supports ADU development under state law, but local rules regarding grading, slope stability, fire safety, and neighborhood compatibility still apply. Our team is well-versed in the Town of Moraga’s planning and building processes, ensuring your project moves forward efficiently.

We manage:

• Site analysis and zoning confirmation

• Architectural submittals and plan check

• Fire district compliance and defensible space guidelines

• Coordination with public works and environmental review (if required)

• Inspection scheduling and final approvals

We handle every detail, so you don’t have to worry about permits or paperwork.

Why Build an ADU in Moraga?

Moraga offers tranquility, space, and a high quality of life—making it an ideal setting for multigenerational living, long-term planning, or rental income. An ADU enhances your lifestyle now and increases your home’s value for the future.

Top reasons to build an ADU in Moraga:

• 🏠 Provide independent space for family, guests, or caregivers

• 💼 Create a private office or studio in a serene, natural setting

• 💰 Earn rental income in a desirable and under-supplied housing market

• 📈 Increase your home’s value and resale flexibility

• 🔁 Adapt your property to future needs like downsizing or aging in place

An ADU adds more than space—it adds opportunity.

Frequently Asked Questions – ADUs in Moraga

Q: Can I build an ADU on my lot in Moraga?
A: Most residential properties in Moraga are eligible for an ADU. We’ll evaluate your site’s setbacks, slope, and zoning during your consultation.

Q: Do I need extra parking for an ADU?
A: Parking may be waived if your ADU meets certain state criteria. We’ll confirm parking requirements based on your location.

Q: How long does an ADU project take in Moraga?
A: Most projects take 6–10 months from design through final inspection. Hillside or fire zone locations may require additional planning time.

Q: Can I rent out my ADU in Moraga?
A: Yes, ADUs can be rented out long-term. We’ll ensure your unit is legally permitted and compliant with local rental ordinances.

Contact Royalty Builders – Moraga’s Trusted ADU Builder

Ready to add elegant, functional living space to your Moraga property? Royalty Builders is here to guide you through every step, from dream to reality. With expert design, efficient permitting, and high-quality construction, your ADU project is in the best hands.

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

Built for your future. Crafted by Royalty.