Greyfield land
In the United States, greyfield land (or grayfield) is a formerly-viable retail and commercial shopping site (such as regional malls and strip centers) that has suffered from lack of reinvestment and been superseded by other shopping sites elsewhere. These particular greyfield sites are also referred to as "dead malls" or "ghostboxes" if the anchor or other major tenants have vacated the premises leaving behind empty shells.