As housing demand rises and families grow, more San Diego homeowners are turning to Accessory Dwelling Units (ADUs) as a smart solution to expand their living space, increase property value, or generate rental income. Whether you’re planning to build a guest house, in-law suite, or a rental unit, working with an expert ADU builder in San Diego ensures the process is smooth, compliant, and customized to your needs.
At Coast Design Build, we bring years of experience, creativity, and precision to every ADU project—from concept to completion.
What is an ADU?
An Accessory Dwelling Unit (ADU), also known as a granny flat or casita, is a secondary residential unit located on the same lot as a primary home. It can be attached, detached, or converted from an existing garage or basement.
San Diego has become one of the most ADU-friendly cities in California, offering relaxed zoning regulations and faster permit approvals—making now the perfect time to build your own ADU.
Benefits of Building an ADU in San Diego
Working with an expert ADU builder in San Diego opens the door to a range of advantages:
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🏠 Rental Income: Generate passive income by leasing the unit.
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👵 Multi-Generational Living: House aging parents or young adult children.
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🛏️ Guest Accommodations: Provide a private space for visiting family and friends.
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💰 Property Value Boost: ADUs can significantly increase your home’s market appeal and resale value.
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🧱 Flexible Living: Use the space as a home office, gym, studio, or retreat.
Whether you want extra income or more personal space, an ADU is a long-term investment that pays off in versatility and value.
Our ADU Services at Coast Design Build San Diego
At Coast Design Build, we handle every aspect of your ADU project, ensuring it’s beautiful, functional, and built to code. Our expert services include:
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Custom ADU design & 3D renderings
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Permitting & city compliance (San Diego & surrounding areas)
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Detached and attached ADU construction
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Garage conversions & junior ADUs (JADUs)
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Interior finishes, plumbing, electrical & HVAC installation
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Smart home and energy-efficient upgrades
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ADA-compliant features for aging in place
We build every ADU to suit your space, budget, and long-term goals.
Why Choose Coast Design Build for Your ADU?
As an expert ADU contractor in San Diego, we’re known for quality, integrity, and results. When you partner with us, you can expect:
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✅ Licensed, bonded & insured professionals
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✅ In-depth knowledge of local ADU zoning laws
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✅ Streamlined project management from start to finish
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✅ Transparent pricing and honest communication
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✅ Timely delivery without cutting corners
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✅ Top-tier craftsmanship and premium materials
Our team is committed to delivering a stress-free experience and a finished product that exceeds expectations.
Navigating San Diego’s ADU Regulations
San Diego’s evolving ADU regulations make it easier and more affordable to build. However, the permitting process, zoning requirements, and design guidelines still require expert attention to avoid costly delays.
With Coast Design Build, you won’t have to navigate red tape alone. We handle the legwork—including permits, inspections, and code compliance—so you can focus on the exciting part: planning your dream ADU.
ADUs for Every Property & Budget
We believe everyone should be able to enjoy the benefits of an ADU. That’s why we offer flexible options and design packages to fit a variety of lot sizes, architectural styles, and budgets. Whether you want a simple studio or a fully equipped two-bedroom unit, we’ll help you maximize your space without exceeding your financial limits.
📞 Let’s Build Your ADU the Expert Way
If you’re ready to increase your property’s potential with a high-quality ADU, trust the experienced team at Coast Design Build San Diego. As the go-to choice for expert ADU construction in San Diego, we’re here to deliver a space that enhances your lifestyle—and your investment.
Contact us today for a free consultation and discover what’s possible with a custom-built ADU that’s designed to impress.
