Earth: new apartments for sale on the Golden Mile, Marbella

Underfloor heating in every room, each with its own thermostat, and air conditioning through quiet ducts. Hot water comes from an aerothermal system, an electric heat pump that takes its heat from the outside air, with a tank in the laundry room of each home.

An island or peninsula with a worktop cut from one piece, soft-close units and Gaggenau appliances: oven, microwave, induction hob, extractor, dishwasher and an American-style fridge. A separate laundry has a washer, a dryer and a sink.

Large porcelain tiles laid flush through the living areas, natural oak boards in the bedrooms, and non-slip porcelain on the terraces, each of which has a water point and a socket. Double plasterboard walls with mineral wool between them keep noise out of the bedrooms.

Porcelain from floor to ceiling in the wet areas, Villeroy & Boch wall-hung toilets, Gessi taps, natural stone worktops, and walk-in showers with a narrow drain along one side and glass screens.

Anthracite Technal aluminium frames with a thermal break, an insulating strip that stops the cold crossing the frame, and wide sliding doors onto the terraces. An armoured entrance door faced in oak, white lacquered doors inside, and white lacquered wardrobes with soft-close drawers and a shoe rack.

A wireless system that runs the air conditioning and the lighting from a phone, with JUNG switches and sockets.