Can I legally add an ADU to a Kennesaw house?

Adding an ADU in Kennesaw is legally possible on many properties, but it requires a permit through Cobb County or the city, along with meeting zoning requirements for lot size, setbacks and utility connections. Not every parcel is zoned to allow one, so confirming your specific lot's zoning before you plan the project matters. Building without the required permit can create problems later at financing or resale. Ask the Kennesaw or Cobb County building department to confirm what your specific lot allows.