Kielder Water & Forest Park Development Trust is a registered charity working at Kielder to promote sustainable development, provide recreational facilities, improve knowledge of the natural environment and encourage the arts. Members, who have appointed directors/trustees to serve on the board, are Northumbrian Water, Forestry England, Calvert Kielder , Kielder Observatory Astronomical Society, Northumberland County Council, Northumberland Wildlife Trust and Northumberland National Park Authority. Affiliate organisations that are not members but have a close working relationship with KWFPDT include Arts Council England, Northumberland Tourism, Environment Agency, The Scout Association and local decision making bodies such as the parish councils.