QBD 21 January 1988. Application for judicial review by Gransils Investments (G) against a notice of entry and a notice to treat served by the local authority (H) in respect of G`s property. H agreed not to seek to enforce an existing compulsory purchase order (cpo) made in respect of the property if G converted it into three self-contained flats available for letting at registered rents . G obtained an improvement grant from H and renovated the property. Since the property was situated in a housing action area , a condition that it would be available for letting at a rent controlled by the Rent Act s for a period of 7 years was attached. However when the work was completed G sought, pursuant to the Housing Act 1985 s507 to repay the grant, thereby avoiding the condition it imposed. When G offered the flats for sale, H served a notice of entry and a notice to treat to implement the cpo. G applied for judicial review to challenge that action claiming that it infringed their right unde