Green roofs and trees, South Africa

Green architecture in Camden London at day

This report makes the case for the inclusion of nature-based infrastructure at Rainbow Junction, a new greenfields development situated in Tshwane, using the SAVi tool to address future climate impacts. The cost-benefit analysis conducted was informed by multipliers from the international literature to assess the impacts of green roofs and urban trees and value carbon storage, energy reduction and stormwater retention benefits.

The analysis shared in this report shows that investment in green roofs and urban trees not only make climate sense but also financial sense over the lifespan of the project. It also points to the need for collaborative action between cities and the private sector to support future climate resilience.