+1 on IzzyJG99's things to check.

Add to them checking to see if there are any "conservation" easements held by, for example, the county. The county has such an easement on my property, in exchange for letting the builder build here, and he had to replace the trees he cut down, on a 2 or 3 to one basis, somewhere else in the county. I can only cut down trees with the express written permission of the county.

Also, you have a pond, and could run into "wetlands" restrictions. A friend has a beautiful lot in rural PA he wants to put a cabin on, but can't because the "development" would disturb the "wetlands" (a stream).

You probably have checked on and/or are aware of these many many restrictions, but some members might be surprised at how many you can run into.