While fraught with ambiguities, support for greater public participation in
environmental policy making is experiencing a renaissance amongst sections
of government and academia, particularly within the field of land-use plan
ning. There is concern within this cohort that the planning system silences
public voices through its current mechanisms for community involvement. Pr
oponents of participation often presuppose that more public participation w
ill produce both 'better' decisions and environmental benefits, but to date
research has focused on the front-end, or 'processes', of participation ra
ther than the 'products' that result, While procedural aspects of public pa
rticipation are important it is imperative that critical consideration is a
lso given to what emerges from the participation that is being exalted. Thi
s paper addresses this concern by focusing on the products of a public part
icipation exercise conducted in Luton, South-east England in order to consi
der what it is that 'silence knows'.