If you have ever stared at your garage and thought “this could be doing more with its life,” you are exactly the kind of person Columbus City Council had in mind this week.
The city just approved new rules that make it much easier to build accessory dwelling units, or ADUs. They’re fully independent living spaces on the same lot as your main home, and they’re about to become a lot more common.
An ADU has to be a real home with its own kitchen and bathroom. It cannot be a camper you plug into an extension cord. The city wants these to be permanent, safe, and actually livable.
Why the city is going all in
Columbus leaders have been circling this idea for a while, and the reasoning is pretty simple. The city is growing fast. Housing is expensive. Families need options that don’t involve uprooting their entire lives. At a press event, Councilmember Otto Beatty said ADUs are a way for regular homeowners to help with the housing crunch in a way that feels manageable. He also pointed out that they can help families stay close, give recent grads a place to land, and provide extra income when the budget feels tight.
So what can you build now?
ADUs are now allowed in every residential district. Before this vote, people had to go through an often frustrating zoning variance process, and that alone stopped a lot of projects before they started. Those hurdles are mostly gone as long as you follow the rules.
Here are the basics:
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• The ADU has to be smaller than the main house.
• It can be up to 65 percent of the size of the main house or up to 1,000 square feet, whichever is larger, but still never bigger than the primary home.
• It cannot be taller than the main house or above 25 feet unless it’s inside an existing tall structure.
• Your total lot coverage cannot exceed 65 percent.
• It must go in the rear yard.
• You do not have to add a parking space.
A fun perk for anyone who hates time-consuming research: the city is paying Opticos Design to create a resource guide so homeowners can understand design options without falling into a two-week internet spiral.
What ADUs look like in Columbus right now
The city has already approved a handful of ADUs in recent years. They took a look at 44 of them and found that all of them were detached structures. Most were built above garages, averaging about 722 square feet. They’re not giant and they’re not flashy. They’re small, neat, and tucked away, which is exactly the point.
Why homeowners might actually want one
Here’s where ADUs get interesting. Residents keep sharing stories about how useful these spaces can be. Beatty told a personal story during a press event about converting a garage into an apartment for his mother. It made caregiving easier and brought the family under one roof without forcing anyone to sacrifice independence.
The city also heard from people who have used their ADUs for traveling nurses, short term student stays, or long term rentals. Kathy Green, who built one on the South Side, told The Dispatch that dealing with extra permitting slowed things down and added cost.
“With the cost of building going up … we don’t need extra barriers to people who want to add housing,” said Green,
What you still need to remember
Building code rules still apply. Permits still matter. If you live in a neighborhood with historic protections or an HOA, you may run into extra steps. And if you want to use your ADU as a short term rental, the same city regulations that apply to any Airbnb will apply here too.
Why this matters for the whole city
Columbus is welcoming more people every year, and the housing supply has not kept up. Council President Shannon Hardin recently pointed out that the city needs every tool available. ADUs aren’t a magic solution, but they let homeowners add housing gently and gradually. They also help neighborhoods stay stable by giving families more ways to stay close and to stay housed.
In other words, ADUs are giving regular Columbus residents a small amount of power in a housing market that often feels overwhelming. And frankly, that feels like something worth celebrating.
