This paper is an output from the project CAPABLE (Children?s Activities,Perceptions and Behaviour in the Local Environment) being carried out at UCL,jointly between the Centre for Transport Studies, the Department of Psychology, theBartlett School of Planning and the Centre for Advanced Spatial Analysis. The overallaim of the project, which runs from 1 August 2004 to 31 July 2006, is to examine theinteraction between children and the local environment, including identifying howchildren use open space and streets, and why they go to some places but not others.This paper draws on results from questionnaires completed by children about theextent to which they are allowed out unaccompanied by an adult. The surveys werecarried out in four schools, two in Hertfordshire, the area immediately north ofLondon, and two in the London Borough of Lewisham. The purpose is to establish theextent to which the children are allowed by their parents to go out unaccompanied byadults. The issues covered include whether the children go out walking or cyclingwithout an adult, whether they are allowed out alone to visit friends houses, go outafter dark or to cross main roads. The results are considered in terms of the children?sage and gender, and in terms of the households? car ownership level and the strengthof its local social networks. It is found that more of the children in Hertfordshire areallowed out alone, despite the fact that the factors that seem to correlate with beingallowed out unaccompanied are stronger in Lewisham. It is concluded that this maywell be due to environmental factors, real and perceived