More space, more options—welcome to the world of ADUs
If you’ve been thinking about adding more livable space to your property, you’ve probably come across the term ADU, short for Accessory Dwelling Unit. And if you’re like most homeowners, you might be wondering, “What type of ADU should I build?” That’s where this quick guide comes in.
Whether you’re looking to generate rental income, create space for family, or boost your home’s value, understanding your ADU options is the first step. Not all ADUs are created equal—each type comes with its own benefits, layout possibilities, and costs. Let’s break it down so you can start planning smarter.
Garage Conversion ADUs
Let’s start with one of the most popular options in California: garage conversions. If you’ve got an underused or cluttered garage, converting it into a livable unit is a cost-effective and space-savvy move. You already have the structure—now it’s about reimagining it into something functional like a studio apartment, office space, or in-law suite.
Garage ADUs are ideal if:
- You want to save on construction costs by using an existing structure
- You don’t need the garage for parking or storage
- You want a quicker permit and build process
They’re especially popular in urban and suburban areas where space is limited, and regulations often make them easier to approve.
Attached ADUs
An attached ADU is built as an extension of your existing home—sharing at least one wall. Think of it like adding a whole new wing to your house, with a private entrance and its own kitchen, bath, and living space. These are great for homeowners who want a separate living area while keeping it close to the main house.
Attached ADUs work well if:
- You have space on the side or back of your house to build out
- You want the unit to feel like an integrated part of the home
- You need a bit more square footage than a garage might offer
They can also be a smart solution for multigenerational living—close, but with enough separation to keep the peace.
Detached ADUs
If you’ve got the yard space and want total privacy between your main home and the ADU, then a detached ADU could be your best bet. These are standalone buildings on your property, often resembling a small house or cottage. They’re the most flexible in terms of layout and design, but they also tend to be the most expensive to build.
Detached ADUs are perfect for:
- Long-term rental income
- Giving older children or extended family their own space
- Creating a fully independent guest house or home office
They offer the most freedom in design, but require a larger budget and more time for permitting and construction.
Choosing the right ADU for your lifestyle
When deciding on the best ADU type for your home, it really comes down to your goals, budget, and available space. Each option offers a unique way to increase functionality, property value, and even income potential. And in California—where space is premium and housing solutions are always in demand—an ADU is more than just a trend, it’s a smart move.
At Rockwood Homes, we specialize in every type of ADU, from cost-efficient Garage Conversions to custom Attached ADUs and fully detached Backyard Units. You can explore some of our past work in the Gallery or reach out through our Contact Page to schedule a free consultation. Let’s build the right kind of space for you—beautiful, functional, and built to last.