Livermore, known for its vineyards, vibrant community, and blend of suburban comfort and natural beauty, is a perfect place to expand your home’s value and functionality. One of the most popular ways Livermore homeowners are doing this is through the construction of Accessory Dwelling Units (ADUs).

Whether you’re looking to add space for aging parents, generate rental income, or build a peaceful home office away from the main house, Royalty Builders is here to bring your ADU vision to life—with local expertise, quality workmanship, and a full-service approach.

Types of ADUs We Build in Livermore

We believe every homeowner deserves a space that works for them—and that means offering a variety of ADU options to meet the unique needs of Livermore residents. From large backyards to existing structures, we design solutions that fit your lot, goals, and lifestyle.

We specialize in:

• Detached ADUs – Private, freestanding units ideal for rentals or guests

• Attached ADUs – Additions that extend your existing home while maintaining flow

• Garage Conversions – A cost-effective way to add living space without new foundations

• Above-Garage ADUs – Maximize vertical space with a stylish loft or studio

• Basement ADUs – Great for multi-level homes looking to optimize existing square footage

Each unit is customized to blend seamlessly with your home—and meet Livermore’s building codes and requirements.

Full-Service ADU Design + Build in Livermore

Royalty Builders offers a seamless design-build experience, meaning you work with one trusted team from start to finish. We handle everything—from the initial consultation to permits and final inspection—so you don’t have to juggle vendors or worry about miscommunication.

Our complete service includes:

• Property and zoning analysis

• Custom architectural design & 3D renderings

• Engineering & energy efficiency planning

• Full permit handling with the City of Livermore

• Construction management & finishing

• Final city inspections and occupancy certificate

You’ll always know where your project stands, and we’ll keep you informed every step of the way.

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

The cost of an ADU in Livermore depends on multiple factors—such as the type of unit, size, level of finish, and site conditions. At Royalty Builders, we provide honest, detailed estimates with no hidden fees.

Typical ADU pricing in Livermore:

• 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 assist with ADU financing options, helping you choose a solution that fits your goals and budget.

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

Like all California cities, Livermore adheres to the state’s ADU-friendly laws—but local regulations still apply. Our team knows the ins and outs of the city’s planning and building department, so we can fast-track approvals and ensure full compliance.

We handle:

• Feasibility studies and lot eligibility

• Setback, height, and size requirement reviews

• Full plan submission and revisions

• Coordination with Livermore city inspectors

• Occupancy certification and code sign-off

You won’t have to worry about permit delays or confusion—we take care of it all.

Why Build an ADU in Livermore?

Livermore is a thriving East Bay city that offers strong property values, excellent schools, and a high quality of life. It’s also part of a region experiencing a growing demand for housing, making ADU development especially valuable.

Here’s why more Livermore homeowners are investing in ADUs:

• 🏘️ Multigenerational living – Ideal for aging parents, adult children, or caregivers

• 💼 Work-from-home needs – Create a quiet, private office or studio

• 💰 Rental income – Tap into the local demand for long-term rental housing

• 📈 Increased property value – Homes with ADUs command higher resale prices

• 🔄 Future flexibility – Adapt your home to life changes without moving

If you’re looking to make your property more livable and profitable, building an ADU in Livermore is one of the smartest moves you can make.

Frequently Asked Questions – ADUs in Livermore

Q: How big can an ADU be in Livermore?
A: In most cases, detached ADUs can be up to 1,200 sq. ft., depending on your lot and zoning. We’ll verify what’s allowed on your specific property.

Q: Does an ADU require additional parking?
A: Often no—especially if your property is near public transit or if the ADU replaces an existing garage. We’ll help clarify based on your location.

Q: How long will the ADU project take?
A: Most ADUs in Livermore are completed in 6–10 months, depending on design complexity and permit timing.

Q: Can I rent my ADU?
A: Yes. Livermore allows homeowners to rent permitted ADUs as long-term housing. We’ll ensure your unit meets all requirements.

Contact Royalty Builders – Livermore’s Trusted ADU Contractor

If you’re ready to add flexible living space and long-term value to your Livermore home, Royalty Builders is here to make the process simple and successful. From the first sketch to the final inspection—we’ve got your back.

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

Let’s build smart, build beautiful, and build local—with Royalty Builders.