ADU Construction in San Diego
Maximize your property’s potential with professional ADU construction in San Diego. At The Millan Construction, we specialize in building Accessory Dwelling Units that are beautiful, functional, and fully compliant with California’s housing regulations. Whether you’re looking to add a rental unit, a home office, or a space for family, we help you every step of the way—from design to final inspection.
Why San Diego Homeowners
Are Investing in ADUs
With rising housing demand, many San Diego homeowners are turning to ADUs (Accessory Dwelling Units) as smart, flexible solutions. Not only do ADUs increase your property’s value, they also open doors to passive income through long-term or short-term rentals. San Diego’s ADU-friendly regulations make it easier than ever to build an additional unit on your property.
What Is an ADU?
An ADU (Accessory Dwelling Unit) is a self-contained living space that shares a lot with a main home. It includes all essential features of a home—kitchen, bathroom, living area, and a separate entrance. ADUs can be detached or attached to the primary residence and are perfect for aging parents, college students, or rental tenants.
Our ADU Construction Services
At The Millan Construction, we provide end-to-end ADU construction services in San Diego:
1. Custom ADU Design & Architecture
Every project starts with a vision. Our in-house design team works with you to create a plan that reflects your needs and complies with city zoning and building codes.
2. Permits & City Approvals
We handle all the paperwork. Our experts are familiar with local San Diego permitting processes, helping you avoid delays and rejections.
3. Turnkey ADU Construction
From laying the foundation to final paint and finishes, our skilled builders take care of every construction detail—on time and within budget.
4. Transparent Project Management
You’ll always know what’s happening. Our team provides regular updates, clear timelines, and ongoing support from start to finish.
Types of ADUs We Build
- Detached ADUs: Standalone units built in the backyard.
- Attached ADUs: Built as an extension of the main house.
- Garage Conversions: Transform existing garages into livable units.
- Basement or Attic Conversions: Make use of your existing space.
- Junior ADUs (JADUs): Smaller units created within the main home.
Why Choose The Millan Construction?
With over 14 years of experience, The Millan Construction is a trusted name in San Diego. We blend craftsmanship, transparency, and personalized service to deliver results that exceed expectations.
Over 14 years of construction experience
Local knowledge of San Diego regulations
Licensed, insured, and bonded
Free consultations and custom estimates
Frequently Asked Questions About ADU Construction in San Diego
How long does ADU construction take?
Timelines vary depending on the type of ADU and permitting process. Most ADU projects in San Diego take 4–6 months from design to completion.
Can I build an ADU on my property?
If your property meets basic zoning requirements, you likely qualify for an ADU. We can confirm eligibility during your free consultation.
How much does it cost to build an ADU in San Diego?
Costs vary based on size, finishes, and site conditions. Contact us for a personalized estimate based on your goals and budget.
Do I need a separate utility connection for my ADU?
Not always. In many cases, your ADU can share water, sewer, and electricity connections with the main house. However, some homeowners choose to install separate meters for rental purposes. We’ll help you decide what works best for your situation.
Will an ADU increase my property taxes?
In California, adding an ADU generally increases the assessed value of your home, but not the base value. That means you might see a small increase in property taxes, but not a full reassessment. We recommend checking with a local tax advisor for details.
Can I rent out my ADU in San Diego?
Yes! San Diego allows homeowners to rent out their ADUs for long-term housing. However, short-term rentals (under 30 days) may require special permits or be restricted in certain areas. We’ll guide you through the legal requirements during your consultation.
Start Your ADU Construction in San Diego Today
Ready to add space and value to your home?
Contact The Millan Construction for a free consultation and see how we can bring your ADU vision to life.