Chicago ADU Basics…

If you're interested in building an accessory dwelling unit (ADU) on your property in Chicago, it's important to be aware of the city's zoning laws. In general, ADUs are only allowed in certain types of residential zones, and there are restrictions on their size, height, and placement on the property.

Before you start any construction, it's always a good idea to check with the local zoning office to see if an ADU is permitted on your property. They can give you specific information about the regulations in your area.


If you're still set on building an ADU, here are a few things to keep in mind:


- In Chicago, ADUs are only allowed in residential zones R1-R5. That means they're not allowed in commercial or industrial areas.


- There are also restrictions on the size of ADUs. They can't be more than 1,000 square feet in total area, and no more than half of that area can be above ground level.


- The height of an ADU is also limited. It can't be more than two stories tall, and the overall height can't exceed 30 feet.


- Finally, there are rules about where an ADU can be located on a property. It must be behind the primary dwelling unit, and it can't be closer than 10 feet to any property line.


Following these guidelines will help you stay within the law when you're building an ADU in Chicago. Remember to check with the local zoning office before you get started, to be sure that you're following all the rules.


If you want more information, you can always check out: https://www.chicago.gov/city/en/depts/doh/provdrs/homeowners/svcs/adu-ordinance.html