What is an ADU?

An ADU, or Accessory Dwelling Unit, is a self-contained living space built on your residential lot. Also called a granny flat, in-law suite, or backyard home, ADUs can be attached to your main house, built above a garage, or entirely detached.

In a high-demand housing market like San Diego, ADUs are more than just extra space—they’re a smart investment.

Top Reasons to Build an ADU in San Diego

✅ Increase Your Property’s Equity

Adding an ADU instantly raises the value of your home. With San Diego’s real estate market continuing to climb, an ADU can significantly boost your equity while also making your property more attractive to future buyers.

✅ Add Usable Square Footage

Whether you need a home office, guest suite, rental unit, or multigenerational housing, an ADU gives you more livable square footage—without having to move or compromise.

✅ Generate Passive Income

One of the biggest draws? Rental income. Many homeowners are using their ADUs as long-term or short-term rentals, creating a steady revenue stream while maintaining privacy.

✅ Future-Proof Your Home

ADUs offer long-term flexibility. As your family grows or your needs change, your ADU can evolve with you—whether it becomes a studio, workspace, or a place for aging family members.

Why Now? (San Diego ADU Regulations Made Easy)

San Diego has made it easier than ever to build an ADU. With loosened zoning restrictions, reduced permit fees, and faster approval processes, there’s never been a better time to build.

At JT & Brothers Construction, we’ll guide you through:

• ADU zoning & permits
• Design & architectural planning
• Custom construction & finishing
• Utility connections & inspections

Common Types of ADUs We Build

1. Detached ADUs: A separate structure built in your backyard—ideal for full rental units or guest houses.
2. Attached ADUs: An extension of your existing home, perfect for multigenerational living.
3. Garage Conversions: Transform your garage into a stylish, fully functional living space.
4. Above-Garage Units: Make use of vertical space with an apartment-style ADU above your existing garage.

Why Work with JT & Brothers Construction?

We bring over a decade of local experience, quality craftsmanship, and deep knowledge of California building codes to every ADU project. From permitting to finish work, we handle every detail—so you don’t have to.

Our design-build process ensures your ADU is not just functional, but also beautiful and in harmony with your main home’s design.

Let’s Build Your ADU Today

Adding an ADU in San Diego isn’t just about space—it’s about future-proofing your home, growing your wealth, and creating more flexibility in how you live.

📞 Contact JT & Brothers Construction today for a free ADU consultation.

Let’s explore how we can add value to your home and make your property work harder for you.