Sanatorium Zonnestraal was designed in1926 by J. Duiker.
Internationally, it is considered a masterpiece of twentieth
century architectural history. So, not surprisingly, Duiker's
original ensemble was nominated for the Unesco World Heritage
A centre for preventative and curative medical care is being built on the country estate. The Duiker ensemble - comprising a main building, two residential pavilions, a workplace and a nurses' home, is being restored.
The main building was restored in 2003 in collaboration with Wessel de Jonge architecten: the original design was actually reconstructed whilst retaining the concrete skeleton. The care functions and a congress centre are housed in the main building.
The shell of the Dresselhuys pavilion was restored in 2008 and it will be completed as soon as a user comes forward. The pavilion can be considered a pure restoration. At the start, practically all the original materials and detailing were existent, though sometimes in a deplorable state. It was possible to preserve two-thirds of the concrete skeleton and floors and, where necessary, these were repaired. Three-quarters of the steel windows were taken out, treated and replaced. At the same time a start was made on implementing the landscape plan for the entire Zonnestraal estate. And, lastly, the Termeulen pavilion will also be tackled, thus completing the restoration of the sanatorium.
1995 - 2002 (Mainbuilding)
2003 - 2008 Dresselhuyspavilion (casco)
in collaboration with Wessel de Jonge architecten
2008 (Dresselhuyspavilion (casco)
R.O. Groep in opdracht van Stichting Loosdrechts Bos (Hoofdgebouw)
Zonnestraal B.V. / De Alliantie (Dresselhuyspaviljoen)
ABT, Adviseurs in Bouwtechniek
Deerns Raadgevende Ingenieurs
Climatic Design Consult
Bureau Alle Hosper
Loosdrechtse Bos 17
1213 RH Hilversum