[[Startup company]] is often greenfield development. A greenfield development is a real estate construction project on previously undeveloped land. The opposite is [[Brownfield development]]. Also see [Greenfield project](https://en.wikipedia.org/wiki/Greenfield_project). > In many disciplines, a greenfield project is one that lacks constraints imposed by prior work. The analogy is to that of construction on greenfield land where there is no need to work within the constraints of existing buildings or infrastructure.