Committees
2009-present
Member of the monuments and architectural advisory committee municipality of Buren
2008-present
Member of the monuments and architectural advisory committee municipality of Deventer
2005-2008
Jury member of the Architectural Contest of the district Achterhoek
1996-2002
Member of the monuments committee municipality of Renkum
1990-1994
Events committee of the Dutch Association of Garden and Landscape Architecture NVTL: organizing of symposia and national and international excursions
Boards
2008-2013
Member of the national environment board of the international Lions organisation; also entrusted with the organisation of conferences
2009-2012
Zone President of the international Lions organisation
2004-2005
Chairman of the Lionsclub Renkum Airborne
1994-2006
Member of the General Board of Het Oversticht, a provincial organisation of spatial quality and heritage of the province of Overijssel