It’s called a Purchase of Development Rights Program (PDR) where the government buys a farmer’s land, then leaves it in the hands of the farmer who can continue to use it for agriculture, but can never build on it, or sell it to anyone else.
A newly proposed resolution from Prince William County School Board members Alyson Satterwhite and Willie Deutsch rules out four of six viable alternatives to developing the Rural Crescent, the last remaining, largely rural, crescent-shaped tract of land from Quantico Marine Corps Base to Manassas National Battlefield Park.