The Grampian condition is a facet of planning Scottish case law established by Grampian Regional Council v City of Aberdeen District Council (1984) 47 P&CR 633. The term is commonly also used in England and Wales.
A "Grampian condition" is a planning condition attached to a decision notice that prevents the start of a development until off-site works have been completed on land not controlled by the applicant.
References
Grampian condition Wikipedia(Text) CC BY-SA