The estate Zonnestraal is a former sanatorium in Hilversum, the Netherlands. The building was designed by architects Jan Duiker, Bernard Bijvoet and Jan Gerko Wiebenga, and is an example of the Nieuwe Bouwen.




The main building consists of three elongated blocks, with the medical department and the entrance in the north block, kitchen and storage space in the central block and sanitary facilities and the boiler house in the south block. Placed above these three is a cruciform restaurant giving onto a roof terrace on the south block.