Greenfield is a piece of usually semirural property that is undeveloped except for agricultural use, especially one considered as a site for expanding urban development.
Generally speaking, "impact fees" are financial contributions (i.e., money, land, etc.) imposed by communities on developers or builders to pay for capital improvements within the community which are necessary to service/accommodate the new development.
Impact fees, however, must be reasonable. To ensure fairness, impact fees can only be assessed (1) for capital improvements that are a direct consequence of the new development and (2) in an amount not exceed an the proportionate share required to serve the new development. In other words, a developer cannot be required to pay a disproportionate share of improvements that also benefit other persons (i.e., a bridge on the other side of town).
