Town and Country Planning Act 1971

5 Where a structure plan is in force in any district, but no local plan is in force in that district, then, for any of the purposes of the [1961 c. 33.] Land Compensation Act 1961—

(a) the development plan or current development plan shall as respects that district be taken as being whichever of the following plans gives rise to those assumptions as to the grant of planning permission which are more favourable to the owner of the land acquired, for that purpose, that is to say, the structure plan, so far as applicable to the district, and any alterations thereto, together with the Secretary of State's notice of approval of the plan and alterations, and the old development plan ;

(b) land situated in an area defined in the. current development plan as an area of comprehensive development shall be taken to be situated in whichever of the following areas leads to such assumptions as aforesaid, that is to say, any area wholly or partly within that district selected by the structure plan as an action area and the area so defined in the old development plan.