Sell Your Commercial Property In Cobb County, GA

Who rents in Cobb County

Renters head 97,524 of Cobb County's 295,714 occupied households, a 33.0% share in the 2020-2024 ACS. Owners hold the larger group, at 198,190 households. Marietta alone accounts for 13,049 renter households, a 52.8% share of its own occupied homes, the highest renter concentration among the cities covered here.

Smyrna and Mableton each hold just over 10,000 renter households, with Smyrna at a 40.6% share and Mableton at 35.4%. Kennesaw's renter base is smaller, at 4,801 households, also a 35.4% share. Cobb County's renter households fell 1.9% since the 2015-2019 survey, even as Cobb County's population grew 3.2% to 775,208.

Rents, growth and affordability

Cobb County's median gross rent rose 43.9%, from $1,202 to $1,730, between the 2015-2019 and 2020-2024 surveys. Median household income in Cobb County grew 31.8% over the same span, to $102,738, so rent outpaced income gains. Units in 5+ unit buildings grew 7.9%, adding 5,090 units, to 69,677.

Rent burden remains heavy in Cobb County. In the 2020-2024 ACS, 50.1% of Cobb County renters paid 30% or more of income on gross rent. HUD's FY2027 two-bedroom Fair Market Rent for the Atlanta-Sandy Springs-Roswell area is $1,762, effective October 1, 2026, just $32 above Cobb County's median gross rent. Rental vacancy in Cobb County stands at 5.3%, tight enough that owners rarely need deep concessions to fill units. Smyrna's median household income, $100,061, runs close to the countywide figure, while Marietta's $72,725 median trails it by a wide margin.

City-by-city comparison

Marietta leads Cobb County's covered cities on apartment density, with 39.8% of its housing stock in buildings of five or more units. Smyrna follows at 31.9%, while Kennesaw and Mableton trail near 19.4% and 16.4%.

Rent in these Cobb County cities ranges from $1,472 in Mableton to $1,845 in Kennesaw. Kennesaw also posts the highest vacancy among the four, at 7.0%, while Marietta's 5.2% rate is the tightest alongside Smyrna's 5.6%.

Mableton's renter share, 35.4%, matches Kennesaw's exactly, though Mableton's population of 77,678 is more than double Kennesaw's 34,605. Both cities sit inside Cobb County but post lighter apartment stock than Marietta or Smyrna.

Property taxes and assessment in Cobb County

Cobb County apartment buildings, like all Georgia real property, are assessed at 40% of fair market value under O.C.G.A. Section 48-5-7, with values set annually under Section 48-5-6. The Cobb County Tax Assessor's office handles the valuation, and appeals run through the county board of equalization.

Confirm the current millage rate and any exemptions directly with the Cobb County assessor's office before you price a sale, since rates can shift year to year. Buyers underwrite the post-sale assessment, not your current bill, so a strong sale price in Cobb County can raise the parcel's taxable value for the next buyer.

Georgia's real estate transfer tax applies when the deed records: $1.00 for the first $1,000 of value plus 10 cents for each additional $100, under O.C.G.A. Section 48-6-1. On a $2,000,000 Cobb County sale, that tax runs about $2,000, due at the Cobb County Clerk of Superior Court when the deed is filed.

What this means if you sell in Cobb County

When you sell commercial property in Cobb County, GA, you are selling into a county where renters hold 33.0% of households and 22.2% of units sit in 5+ unit buildings. Selling commercial property in Cobb County, GA also means pricing against a 5.3% rental vacancy rate, tight enough that buyers will test your actual rent roll rather than discount for vacancy risk.

Georgia law keeps rent levels a market matter: O.C.G.A. Section 44-7-19 bars Cobb County and its cities from enacting rent control on private rental housing. As a multifamily buyer in Cobb County, GA, we review 5+ unit buildings from Marietta to Mableton as they stand today. Send a current rent roll, a T-12 and the latest tax statement, and we will price the building on those numbers.