The project is a result of a land allocation competition held by the city of Stockholm. The city asked for a plus energy building with rental apartments and architectual design that would express the high ambitions of energy efficiency. The public housing company Stockholmshem put together a team of experts and DinellJohansson was commissioned to develop the arcitectural design. We won the competition and stockholmshem got the land allocation to build the project.

The project consists of two buildings with in all 43 apartments. The buildings are technically connected and share the same system for heating with a geothermal heat pump and a high degree of heat recovery on both used air and wastewater. The concept of the dwellings is inspired by traditional rural houses in the swedish climate.

In winter the dwelling shrunk into the one space that was heated whereas in summer it expanded to the rest of the building and beyond - a smart and paragmatic way of being energy efficient. After completion monitoring of the energy use shows that the building is succeeding in reaching plus energy standards.