Lawful Development Certificate for existing operation - installation of ground source heat pumps for heating and hot water systems for Flats 1 - 16 and the Manager's office replacing electric night storage radiators. Heat supplied via 10 Boreholes and then transferred to each flat internally, where a heat pump is fitted at each dwelling. All excavations are within the curtilage of the flats, and the excavation is less than 0.5 hectare.