Amstelveen A9 is a sustainable masterplan study for Ballast Nedam Development to the City of Amsterdam, which issued a statement to add 230,000 new housing units in the next 20 years. A9 is one of the many areas where there will be residential development to fill the needs of the housing demand in the greater Amsterdam area.
The design study redevelops the underground A9 vehicle tunnel with residential and public programs along a quality green space above the deck of the tunnel.
The design challenge rotated around how to connect both sides of the city that are divided via the A9 highway and unify it into a community.
The resulting masterplan achieves this by suggesting a gradual increase from ground-bound housing units into mid-rise and accented high-rises by the tunnel edge. These high-rises are supported by the structural walls of the tunnel itself.