Quick answer
CDD fees are community development district costs that may show up in the tax bill for some planned communities. They can affect the monthly payment, so they belong in the conversation before you fall in love with the home.
Why buyers miss them
A listing can make a home look affordable based on price alone. Then the buyer learns the taxes and district fees are higher than expected. That changes the comfort level.
How to compare homes
Do not compare only price and square footage. Compare taxes, HOA, CDD, insurance, utilities, and likely maintenance. A slightly cheaper house is not always cheaper every month.
Questions to ask
Is there a CDD? How much is it? How long does it last? Is there an HOA too? What amenities or infrastructure does it support? How does it affect the monthly payment?
Where I help
I help buyers pause, read the numbers, and decide whether the home still works after the fees are real.
Fees are not automatically bad. Surprises are the problem.