ADUs

With California’s updated ADU laws making approval faster and easier than ever, adding a high-quality ADU instantly increases your home’s value, creates reliable rental income, and provides flexible space for family members, guests, or a private home office.

CalHFA Grant

Did you know? You could qualify for up to $40,000 in ADU funding!

While ADUs offer homeowners rental income potential and contribute to alleviating the state’s housing shortage, many hesitate due to high initial costs. The CalHFA ADU Grant provides up to $40,000 to cover pre-development and one-time closing costs for ADU construction. This grant can help with essential pre-development expenses like site preparation, architectural plans, permits, soil testing, impact fees, property surveys, and energy assessments.

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Years Of Experience

The Only Way To Live In Your Dream, Is To Live In Your Dream Home.

About First Builders

Why Choose First Builders?

Reasons to Make Us Your Contractor of Choice

Transparency

We keep our clients informed at every stage, providing clear guidance and open communication throughout the process.

Integrity

We uphold the highest ethical standards, always doing what's right for our clients, team, and community.

Quality Construction

We take pride in our craftsmanship, using the best materials and techniques to build spaces that last.

Exceptional Customer Experience

We are dedicated to providing a seamless, stress-free process, ensuring our clients feel valued and heard from start to finish.

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What Clients Are Saying About Us

How We Do It

From Start To Finish First Builders Has You Covered

Plan

Our ADU process starts with expert planning, whether from a garage or backyard space. We collaborate with you on customized layouts and blueprints for your studio, one-, or two-bedroom unit, then handle all permits and ensure full code compliance with complete transparency.

What's included?

Design

Compact ADUs demand smart, personalized design. Our in-house team optimizes every square foot with stylish layouts, efficient storage, natural light, and premium finishes, creating a beautiful, functional space that perfectly matches your lifestyle and vision.

What's included?

Build

At First Builders Inc., our family-owned team delivers superior craftsmanship on every project. We manage construction from foundation to final details, partnering with trusted vendors for top-quality materials and finishes that ensure your ADU is built to last.

What's included?

Why Build an ADU?

Building an Accessory Dwelling Unit (ADU), often called a granny flat, in-law suite, or backyard cottage, is one of the smartest investments you can make in your Southern California property. With California’s updated ADU laws making approval faster and easier than ever, adding a high-quality ADU instantly increases your home’s value, creates reliable rental income, and provides flexible space for family members, guests, or a private home office. At First Builders Inc., we specialize in designing and constructing ADUs that blend seamlessly with your existing home while maximizing livable space and long-term returns.

As a family-owned Los Angeles builder with decades of local experience, we handle every detail with transparency and care, from navigating permits in Los Angeles, Orange County, Santa Barbara, and the Inland Empire to delivering exceptional craftsmanship that stands the test of time. Whether you’re looking to accommodate aging parents, generate passive income, or future-proof your property, our team is committed to turning your vision into a beautiful, code-compliant ADU with minimal stress and maximum value. Let us help you unlock the full potential of your property today.

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