The 30 year fixed rate climbed to 7.50% this September, its highest reading in over a year. On a typical $400,000 Cobb County home, that move adds real dollars to the monthly payment. Here's what it costs buyers, what it means for sellers pricing a listing, and how to read the numbers without the bond market jargon.

Kennesaw buyers keep asking the same question: hold out for lower rates, or buy now while West Cobb inventory loosens up? The 30-year rate has barely moved since spring, and Fannie Mae doesn't expect that to change. Here's the math that actually answers the question.