Before you can build anything you have to get a flood survey because of all the flooding during the hurricane's that hit here in Louisiana in the past years. I called a survey company and he came out put his GPS tripod where were going to put our home and downloaded the info then sent it to fema. I got the the paper work about 2 weeks later. I had to pay for it it was 550.00 once we get the pad done he will come out and make sure the pad is high enough then we can continue.