In the last few decades, cities nationwide began updating local ordinances to allow multifamily zoning.
Now, accessory dwelling units are on the rise.
And the trend isn’t slowing anytime soon.
Credit:Candra Huff
“We’re expecting to see ADUs surge in popularity.”
What Is an Accessory Dwelling Unit (ADU)?
An accessory dwelling unit (ADU) is a residential unit on the samelot as a single-family home.
Credit: Courtesy of Christopher Strom Architects and Alyssa Lee Photography
There are three types of ADUs:
Detached ADU:A stand-alone unit separate from the main house.
This is often a smaller structure in the backyard or a unit above or attached to the garage.
Attached ADU: An addition connected to the main house.
Credit: Courtesy of Maxable
These units frequently have a separate entrance on the side or back of the house.
Some jurisdictions allow both an ADU and a JADU on one property.
The key in of ADU depends on the property and its location.
Intended use also plays a role.
Why Are Accessory Dwelling Units So Popular Now?
Several factors are converging to make these tiny homes a big attraction.
ADUs increase housing diversity in already-developed residential neighborhoods, often adding much-needed affordable housing solutions.
ADUs are also popular among homeowners because theyadd property valuewhile creating an opportunity for passive income.
ADUs are also being considered for caregiver dwellings.
The self-sufficiency of ADUs is the standout feature for these groups.
EvenHOAs may have stipulationson the subject.
“The biggest thing to remember is that every jurisdiction is different,” says Bigelow.
In some instances, a minimum ADU size is also stipulated.
Since their scale makesenergy-efficient optionsmore viable and cost-effective,eco-conscious designalso significantly influences ADUs.
You must also consider theexterior architectureof a detached ADU.
“Most people assume it will look like the main house,” says Strom.
What Are the Costs of Building an ADU?
When Should I Build an ADU?
Consider building an ADU when you’re already planning a relatedhome improvement project.
“It’s a great time to consider how to maximize the space,” he says.
Dreaming of a new backyard deck or storage project?
That’s a good time to consider an ADU, too.
How Can I Learn More About Building an Accessory Dwelling Unit Where I Live?
Seattle, for example, has awebsite dedicated to ADUsthat includes pre-approved ADU designs.
There are also regional companies, like Maxable, that specialize in educating homeowners about ADUs and associated requirements.
Before building an ADU, find professionals with ADU experience to help investigate the details of your property.