Finding a home that fits your budget and your family’s needs can be a challenge. If you already own a home, your needs may be changing. You might want room for loved ones, more independence for an older parent, or a way to bring in additional income.
An accessory dwelling unit, usually called an ADU, may help you work toward those goals. The key is understanding what an ADU offers, how you would use it, and what the rules allow where you live.
What Is an Accessory Dwelling Unit?
AARP describes an ADU as a small residence that shares a single-family lot with a larger, primary home. It is an independent, self-contained living space with a kitchen or kitchenette, a bathroom, and a sleeping area.
In plain English, it is a separate place to live on the same property as the main house. That separate living space is what makes an ADU useful for people who want to be close without sharing every part of their home.
An ADU can take several forms:
- Within the main home: A self-contained living space inside the primary residence.
- Attached to the main home: A separate living space connected to the house.
- Detached from the main home: A separate structure on the same lot.
An ADU can also be created from an existing structure, such as a garage, or built as a new structure. If you are shopping for a home, you might look for a property that already has one. If you are a homeowner, you might explore adding one to your property.
Local rules matter. ADU regulations vary depending on where you live. Before deciding that a particular property or project is right for you, work with a local real estate professional to understand the applicable codes and regulations.
Four Ways an ADU May Benefit You
Freddie Mac and AARP identify several benefits of ADUs for buyers and homeowners. The most useful benefit for you will depend on what you want the space to accomplish.
1. Keep Loved Ones Close While Preserving Privacy
An ADU lets loved ones live on the same property while maintaining separate living spaces. You can spend time together and help one another with things like childcare, while still having privacy when you need it.
Freddie Mac describes having an ADU on an existing property as a popular way for homeowners to offer independent living space to family members.
That balance is worth thinking through before you buy or build. Are you looking for more time together, help with family responsibilities, or simply the comfort of having someone nearby? How important is a separate kitchen, bathroom, and sleeping space to everyone involved?
If closeness and independence are both priorities, buying a home with an ADU or adding one to your existing home may be worth exploring.
2. Support Aging in Place
ADUs can allow older adults to live near loved ones who can help as their needs change. The appeal is straightforward: a place of their own, with family close by.
For example, if your parents are getting older and you want them nearby, you might consider buying a property with an ADU or building one on your current property. The separate residence can offer independence while keeping support from loved ones within reach.
Start with a conversation about what everyone wants. Would your parents welcome living nearby? What does independence mean to them? What kind of help are you hoping to provide?
The point is not just to create another living space. It is to decide whether this arrangement fits the people who would use it.
3. Explore a Smaller Building Option
Because ADUs are often smaller, they are typically less expensive to build than larger, standalone homes. Building an ADU can also increase your property’s value.
Those are potential advantages, not a reason to skip a careful look at your own plans. The useful comparison is between the options you are actually considering, rather than between an ADU in general and an unspecified larger home.
Would you rather buy a home that already includes an ADU, convert an existing structure, or explore new construction? What do you want to spend, and what purpose would the finished space serve?
Keep your housing goal at the center of the conversation. A smaller residence may be worth considering when you want a separate living space without building a larger, standalone home.
4. Create an Opportunity for Rental Income
If you own a home with an ADU, or build one on your land, it may generate rental income. You could use that income toward your own mortgage payments.
If rental income is your main reason for considering an ADU, make that clear when you speak with a local professional. Ask what the local rules allow before moving forward with that intended use.
Also consider your priorities. Is the space primarily for a family member, primarily for a renter, or are you still deciding? Answering that question gives your planning a clearer direction.
Can You Sell an ADU Separately?
An ADU typically cannot be sold separately from the primary residence because it is a secondary dwelling on a single-family lot.
Some states are changing that approach. Do not assume that an option available elsewhere applies to your property. Work with a professional to understand your local options.
This distinction deserves attention if separate ownership is part of your goal. Having an independent living space and being able to sell that space separately are not the same thing.
Decide Whether an ADU Fits Your Goals
ADUs are more than a niche housing idea. Scott Wild, SVP of Consulting at John Burns Research, describes their role this way:
“It’s gone from a small niche in the market to really a much more impactful part of new housing.”
Still, the important question is what an ADU could do for you. Use these questions to organize your next conversation:
- Is your main goal family space, aging in place, or rental income?
- Would you prefer a home with an existing ADU or explore adding one?
- How much separation and privacy do the people involved want?
- What do local codes and regulations allow?
- Does your plan depend on being able to sell the ADU separately?
Your Next Step
Write down your main goal and the questions you need answered. Then connect with a local real estate professional to discuss ADU rules and available properties in your market.
If you want to talk through how a home with an ADU fits your housing and mortgage goals, reach out to Ed Parcaut. Start with your needs, understand your options, and take the next step with a clearer plan.
