Outside the immediate city and suburbs of Orlando, Florida, there is a type of financing called USDA, which is zero down. Most builders still want an earnest money deposit (good faith deposit) of $1,000, but that is credited back at closing.
Areas of Apopka, Haines City, Clermont, Wedgefield, Kissimmee, Groveland, Clermont, St. Cloud, Deltona & Davenport, etc., have new home builders accepting this financing. Enter address to see if a specific area is eligible.
Additionally, I've been getting closing costs paid and appliance packages included in the transaction for my clients! (FYI, if you want the best deals buying new construction, always have a Realtor negotiating on your behalf...you'll likely get a much better deal.)
If you don't have 3.5% down for FHA or 3%-5% down payment for Conventional, this is a terrific option.
Take a look at the link below for more information, and if you want to actually talk to a live person about this type of loan, I'd be happy to give you my Orlando contacts.