Land is finite, as are financial resources. If we are to get the best from the land we develop we need to ensure developments are economically realistic, can be co-ordinated and can realise not just principal goals but also a wide range of incidental goals. Such primary goals might be, for example to provide housing that meets all the relevant standards and can be delivered at a commercial return. Incidental goals might be to offer surroundings that make walking and cycling more likely, that are beautiful and support nature, that are rich in opportunities to play and for people to socialise. Reconciling these diverse goals confirms the developer as responsible and can nurture a sense of community, identified time and time again as a highly sought after and valued characteristic in our towns and cities.