Building on a previous assessment by UNEP and UNSOA of the resource-demand and operating practices of two proposed African Union Mission to Somalia (AMISOM) camps, in Mogadishu, Somalia and Mombasa, Kenya in June 2009, UNEP and UNMIS have collaborated to recommend sustainable technologies and operating practices to be included in the design and construction of the proposed UN House built in Juba, South Sudan, under UNMIS’ supervision. This report provides a set of immediate, medium and long-term recommendations for reducing energy and water footprints.