The Water Purifying Community is located at the unused Maashaven harbour, near the city centre of Rotterdam.The plan focuses on densifying the city by using space normally not built on :the water.
A public promenade offers the inhabitants access to the communal gardens, playgrounds and parking garages. Water, gardens, wind, boats, tide, animals and the seasons all become part again of daily life in this sustainable, self-supporting community. Forming quite a natural, but densely built environment.

The ecosystem friendly buildings, offer a sustainable living environment, which provides a natural cycle within an urban setting. It purifies the water, generating and storing energy. The tides create a continuous changing public realm connected to water. Floating helophyte gardens move with the tides and purify the wastewater. The floating parts of the community move up and down 2 metres with the tides. This natural movement is used to pump river water, cleaned for consumption into the water towers distributing back into the community. Zero energy and natural way to purify and distribute drinking water. Energy supply is guaranteed by consequently southward oriented photovoltaic roofs and wind turbines on the water towers.