Tanzania is a fast urbanising society. At the same time, urban residents are reliant on nature. Peri-urban agriculture, artisanal fishing and nature-based tourism support thousands of livelihoods. Dar Es Salaam is also located in a globally important biodiversity hotspot, the ‘East African Coastal Forest’.  Dar es Salaam has a long history of greening but the spatial allocation of greening funds have not been strategic. Based on this need, ‘A Thematic Atlas of Nature’s Benefits to Dar es Salaam’ was co-developed with a wide range of stakeholders. The Atlas was based on ecosystem services thinking and each of seven ‘themes’ in The Atlas represents an urban challenge, such as rising urban heat or flooding. Descriptive information about nature’s benefits in Dar es Salaam and the maps were packaged as an easy-to-read report and which is downloadable for free. The information and maps in the Atlas facilitate evidence-based decisions on where to invest in greening to achieve social outcomes.