Top ADU Permit Builders in Irvine, California

An ADU (Accessory Dwelling Unit) is a small, self-contained residential unit located on the same lot as a single-family home. It typically includes a kitchen, bathroom, living area, and sleeping space. ADUs are also known as:
- Granny flats
- In-law units
- Backyard cottages
- Garage apartments
- Secondary units

Best ADU Permit Contractors in Irvine

1. Fortune ADU – Your Trusted ADU Design-Build Partner

Fortune ADU stands out as a premier ADU design-build contractor in Irvine, offering comprehensive services from design to construction. With over five years of experience, they specialize in creating custom detached and attached ADUs, garage conversions, and in-law suites. Their team ensures a seamless permitting process, adhering to local zoning regulations and building codes. Fortune ADU's commitment to quality craftsmanship and customer satisfaction makes them a top choice for homeowners looking to add value and functionality to their properties.

Why Choose Fortune ADU?

Deep expertise in Irvine zoning and permitting
End-to-end project management—from design to final inspection
Dozens of successful ADUs completed across Orange County
Transparent pricing and responsive communication
Trusted by local homeowners and property investors alike

2. SoCal Casitas

SoCal Casitas brings over 40 years of experience in home remodeling and ADU construction. Based in Irvine, they offer turnkey solutions, guiding clients through every step—from design and permitting to construction. Their expertise ensures that each ADU project meets the specific needs and preferences of homeowners, providing functional and stylish living spaces.

3. Skye Construction

Skye Construction focuses on transforming underutilized spaces, particularly garages, into profitable ADUs. They offer both detached and attached ADU solutions, emphasizing cost-effective designs that maximize rental income potential. Their approach ensures that each project complies with local regulations and meets the client's vision.

4. Avorino

Avorino specializes in custom home and ADU construction, offering personalized services tailored to each client's needs. They emphasize a client-centric approach, providing a single point of contact throughout the project to ensure clear communication and seamless execution. Their commitment to quality and attention to detail makes them a reliable choice for ADU projects in Irvine.

5. Nestadu

Nestadu is a top-rated ADU builder in Irvine, offering a range of services from design to construction. They assist homeowners in navigating the complexities of ADU regulations and provide guidance on financing options. Their expertise ensures that each ADU project is completed efficiently and in compliance with local codes.

✅ Benefits of Building a Permitted ADU in Irvine

Legal Compliance: Ensure your ADU meets all local zoning and building codes.
Increased Property Value: A well-designed ADU can significantly boost your property's market value.
Rental Income: Generate passive income by renting out your ADU.
Flexible Living Space: Create additional space for family members, guests, or a home office.
Tax Benefits: Potential eligibility for tax credits and utility rebates.

FAQ

What is an ADU?

An Accessory Dwelling Unit (ADU) is a secondary housing unit on a single-family residential lot. It can be a detached unit, an addition to the existing home, or a conversion of existing space like a garage or basement.

Do I need a permit to build an ADU in Irvine?

Yes, building an ADU in Irvine requires obtaining the necessary permits from the city's planning and building departments. It's essential to work with a licensed contractor familiar with local regulations.

How long does the permitting process take?

The permitting process can vary but typically takes several weeks to a few months, depending on the complexity of the project and the completeness of the submitted plans.

What are the size limitations for an ADU in Irvine?

In Irvine, detached ADUs can be up to 1,200 square feet, while attached ADUs are limited to 50% of the primary dwelling's size or 800 square feet, whichever is less.

Are there any incentives for building an ADU in Irvine?

Homeowners may be eligible for certain incentives, such as waived development fees for ADUs under 750 square feet and potential utility rebates for energy-efficient systems.