ADU Builder in San Diego
Custom Accessory Dwelling Units Designed for Modern Living
Accessory Dwelling Units (ADUs) have become one of the most popular ways for homeowners in San Diego to add space, increase property value, and create flexible living options. At Berkley Construction, we specialize in custom ADU construction in San Diego, helping homeowners design and build high-quality backyard homes, guest houses, and rental units.
Whether you're planning a detached backyard ADU, converting a garage into a living space, or building a small second home on your property, our experienced team manages the entire process—from planning and design to construction and completion.
What is an ADU?
An Accessory Dwelling Unit (ADU) is a smaller residential unit built on the same property as a primary home. ADUs provide a fully functional living space that may include a bedroom, bathroom, kitchen, and living area.
Because of recent housing updates in California, building an ADU in San Diego has become more accessible than ever. Many homeowners are using ADUs to create rental income, house extended family, or add flexible living space to their property.
Types of ADUs We Build in San Diego
Every property is unique, and our team helps determine the best ADU design for your space and goals.
Detached ADUs: A fully independent structure built in your backyard that functions as a private home.
Attached ADUs: An addition connected to your main home, often sharing a wall or roofline.
Garage Conversion ADUs: Transform an existing garage into a comfortable and modern living space.
Junior ADUs (JADUs): A smaller unit built within the footprint of the existing home.
Our ADU Construction Process
Building an ADU involves several important steps, and our team helps guide you through the entire process.
Consultation: We begin by evaluating your property, discussing your goals, and exploring ADU design options.
Planning and Design: Our team works with you to develop a layout that maximizes space and functionality while meeting San Diego building regulations.
Permits and Approvals: We assist with navigating the permit process required for ADU construction in San Diego.
Construction: Our experienced builders complete the project with quality craftsmanship and attention to detail.
Final Walkthrough: Once construction is complete, we review the finished space together to ensure everything meets expectations.
Why Homeowners Choose Us for ADU Construction
Building an ADU requires experience with local building codes, zoning regulations, and construction best practices. Our team brings local knowledge and professional craftsmanship to every project.
Homeowners choose Berkley Construction because we provide:
• Experienced ADU builders in San Diego
• Clear communication throughout the project
• High-quality materials and construction
• Personalized design solutions
• A streamlined building process from start to finish
Our goal is to create ADUs that feel like a natural extension of your home while providing lasting value.
Frequently Asked Questions
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ADU costs typically range from $150,000 to $400,000+ depending on size, design, and site conditions. Costs vary depending on the size, design, and complexity of the project. During your consultation, we provide a detailed estimate based on your property and goals.
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Most ADU projects take 6–12 months including design, permitting, and construction.
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Yes. ADU construction must follow local zoning and building regulations, and permits are required before construction begins.
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Yes. Many homeowners build ADUs specifically to create rental income.
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ADUs can generate rental income, provide space for family, and significantly increase property value.