Neighbourhood mediation has been practiced more than fifteen years in the Netherlands. In 2010 there was neighbourhood mediation in 160 municipalities. More than 7000 cases were handled. Volunteer mediators try to break through communication blockades and teach their neighbours to make agreements. They are successful in two thirds of the cases. This means that about 20.000 directly involved family members are participating in successful cases. The authors discuss some conditions, results and the central principles of Dutch neighbourhood mediation: communication on an equal basis, impartiality, responsibility to solve conflicts, autonomous action and the enhancement of security and quality of life.