Reminds me of the house/cabin we stayed in in North Carolina overlooked the wine cellar. House with roof terrace and underground kitchen (Thatcher's old house, redeveloped in Chester Square, Belgravia)
This house has it: an air-source heat pump, a rainwater harvester, central-vacuuming system, triple-glazing and motion-sensitive lighting system. It also features underfloor heating and self-closing loos. The five bedrooms are arranged over three storeys.