This paper aims to investigated twenty-eight cases of treatment and redevelopment of contaminated land such as brownfield site from the view of care for the public consultation, and decision-making meetings are practiced by local governments, and care for the public is clearly seen as one of the core element in the approach of treating and redeveloping contaminated land. The presence of residential groups and environmental groups is found to be effective to promote public participation. Especially, residential groups have promoted for the participation to the meeting, which is the most direct and active form of public participation. Citizen participation is found to be promoted by environmental groups and Groundwork Trust.