Expert ADU Construction in Los Angeles County

Add valuable living space to your property with a professionally built Accessory Dwelling Unit. Whether you're seeking rental income, multi-generational housing, or simply more room to grow, we'll guide you through every step—from permits to completion.

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What is an ADU?

An Accessory Dwelling Unit (ADU) is a secondary living space on your property—separate from your main home but on the same lot. ADUs come with their own kitchen, bathroom, and living area, making them fully functional independent residences.

In Los Angeles County, ADUs have become increasingly popular as homeowners look for ways to maximize their property's potential. Whether you want to create rental income, house aging parents, accommodate adult children, or simply add flexible living space, an ADU offers a practical solution that adds significant value to your property.

California's streamlined ADU regulations have made it easier than ever to add this type of living space. With the right builder who understands local requirements, your ADU project can move forward smoothly from design through completion.

Rental Income Potential

Generate monthly rental income that can offset your mortgage, fund retirement, or simply improve your financial flexibility.

Multi-Generational Housing

Keep aging parents or adult children nearby while maintaining everyone's independence and privacy with separate living quarters.

Increased Property Value

ADUs typically increase property value more than their construction cost, making them a smart long-term investment.

Additional Living Space

Create a home office, art studio, guest suite, or gym—extra space that adapts to your lifestyle as your needs change.

Types of ADUs We Build

From detached backyard units to garage conversions, we'll help you choose the ADU type that best fits your property and goals.

Detached ADU

A standalone structure in your backyard offering maximum privacy and flexibility. Perfect for rental units, guest houses, or fully independent living spaces with their own entrance and utilities.

Attached ADU

Connected to your main home while maintaining separate living quarters. This option often costs less than a detached unit and works well for multi-generational families who want proximity with privacy.

Garage Conversion

Transform your existing garage into a functional living space. This is typically the most cost-effective ADU option since the foundation and structure already exist, though parking replacement may be required.

Junior ADU (JADU)

A smaller unit (up to 500 sq ft) created within your existing home. JADUs share utilities with the main house and are ideal for aging parents, adult children, or home offices that occasionally need sleeping quarters.

Our ADU Process

We've refined our process over nearly 20 years to make ADU construction straightforward, transparent, and stress-free.

Ochoa Builders family team standing in front of ADU construction project

Why Choose Ochoa Builders for Your ADU

Nearly 20 years of experience navigating Los Angeles County building codes, zoning regulations, and ADU-specific requirements. We know exactly what it takes to get your project approved.

We manage the entire permitting process from start to finish. You won't need to deal with city offices — we handle all of that while keeping you informed every step of the way.

Transparent, predictable pricing with minimal change orders. We provide detailed estimates upfront and only adjust pricing for significant scope changes—no nickel-and-diming or surprise costs.

Family-owned and operated with a father and two sons working side by side. When you work with us, you get personal attention and direct access to the people building your ADU.

Over 300 successfully completed residential projects across Los Angeles County. Our track record speaks for itself—we deliver quality construction on time and on budget.

Our ADU Projects

See the quality and craftsmanship we bring to every ADU project across Los Angeles County.

Modern Detached ADU
ADU

Modern Detached ADU

500 sq ft detached ADU with full kitchen, bathroom, and living space

Pasadena 500 sq ft 7 months
Garage Conversion ADU
ADU

Garage Conversion ADU

Converted 2-car garage into modern studio ADU with kitchenette

Santa Monica 400 sq ft 5 months
Luxury Detached ADU
ADU

Luxury Detached ADU

High-end ADU with vaulted ceilings and premium finishes

Beverly Hills 650 sq ft 8 months

Frequently Asked Questions About ADUs

Most ADU projects take 6-9 months from permit approval to completion. The timeline depends on the type and size of ADU, site conditions, and the complexity of finishes. We provide a detailed schedule during the consultation phase so you know exactly what to expect.

Yes, all ADUs in Los Angeles County require building permits and must meet local zoning requirements. The good news? We handle the entire permitting process for you—from plan submission to final approval. With nearly 20 years of experience navigating LA County regulations, we know how to get your project approved efficiently.

ADU costs vary widely based on size, type, finishes, and site conditions. Garage conversions typically start lower, while detached ADUs with premium finishes cost more. We provide transparent, detailed estimates during the consultation phase so you can make informed decisions. Contact us for a free estimate tailored to your specific property and goals.

Yes, you can rent out your ADU for long-term or short-term stays, depending on local regulations. Many homeowners use ADUs to generate rental income that helps offset mortgage payments or construction costs. We can design your ADU with rental tenants in mind, ensuring it meets all requirements for legal rental use.

Yes, adding an ADU typically increases property value significantly—often more than the construction cost. The exact value increase depends on your location, the quality of construction, and market conditions. Beyond resale value, an ADU immediately increases your property's income potential and living flexibility.

Absolutely. We manage the entire permitting process from start to finish, including plan preparation, permit applications, and coordination with inspectors. You won't need to visit city offices or navigate complex regulations—we handle all of that for you, keeping you informed at every step.

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Construction workers in hard hats and safety vests reviewing plans