Development Workshop has been involved for a number of years in developing programmes of community service provision, water, sanitation, school facilities upgrading and women’s micro-economic activities in the peri-urban ‘musseques’ of Luanda, Angola. DW wishes to develop monitoring tools to measure the impact of its programme interventions and other external and environmental factors on the well-being of communities in the areas of programme intervention. DW is therefore developing information tools appropriate for rehabilitation and policy-making in marginalised peri-urban communities of Luanda through the design of a Geographical Information System for monitoring environmental and social impact.