LT 24 July 1989. The council compulsorily purchased (M)`s freehold interest, the valuation date being 1 April 1986. The premises were acquired with adjacent land owned by two directors. Compensation for that land being agreed as £135,671. The parties agreed that in the absence of compulsory acquisition M`s managing director would control future use of the sites and if future development of a new petrol filling station should occur M should receive fair and proper apportionment of the value of the combined site. Planning permission was to be assumed for the purpose of arriving at market value. The original station was built in 1960 and had little modernisation. It sold 500,000 gallons pa at the lowest price in the area. Purchasers of new petrol stations capable of a significant high volume of sales would approach capital value by ascribing a unit price to every gallon sold. M therefore claimed compensation on this basis at £1 per gallon for 1m gallons pa less £300,000 redevelopment co