Design to improve the thermal performance of building shells, a ground source heat pump system with vertical boreholes and Photovoltaic Systems in a five-building school complex located on Kleanthous Street in Toumba, Thessaloniki.  The complex comprised of five buildings with a total area of ​​8,000 m².

The design focused on improving the thermal performance of the existing buildings, the conversion of the hydronic heating systems to new ones of low temperature type, coupled with ground source heat pumps, new lighting systems in all areas, the installation of three photovoltaic systems and a Building Management System.