10/30/2026
East Cobb homeowners just got a new option for their property.
After years of debate, the Cobb County Board of Commissioners voted 3–2 to approve new accessory dwelling unit rules for unincorporated Cobb County — including East Cobb.
In plain English: qualifying homeowners now have a path to build a detached backyard cottage, granny flat, in-law suite, or ADU on the same property as their primary home.
But this is NOT a free-for-all.
Under the approved framework, an ADU can be no larger than 850 square feet or 50% of the primary home’s size, whichever is smaller, and each proposed ADU must go through the county’s special land-use permit process.
The rules also include safeguards such as:
🏡 Owner occupancy requirements
đźš« No short-term rental use
📍 Location and setback restrictions
đźš— Off-street parking requirements
đź“‹ HOA/covenant restrictions can still apply
And this is where the debate gets interesting.
For some East Cobb homeowners, ADUs could provide flexibility for aging parents, adult children, multigenerational living, guests, or long-term housing.
For others, the concern is what additional dwellings could eventually mean for density, parking, neighborhood character, and enforcement.
My take?
I generally like giving homeowners more flexibility with property they already own — especially when we’re talking about taking care of family.
But requiring every ADU to come before the county for individual approval means this isn’t suddenly going to turn every East Cobb backyard into a rental property.
The details still matter.
And from a real estate perspective, this creates another question buyers may start asking when evaluating larger lots:
“Could I build an ADU here?”
East Cobb homeowners — what do you think?
✅ YES — Give homeowners more flexibility
❌ NO — Protect neighborhood character
🤔 DEPENDS — Show me the cost and the rules first
And if your property qualified… would you actually build one?