The primary purpose of this report is to present findings from a rapid assessment of ‘green affordable housing’ conducted in Nairobi, Kenya between February and May 2012, including an intensive field visit to Nairobi. This effort should be viewed as preparatory work with the objective of promoting green technologies and materials in the housing sector to reduce the negative impact of the housing construction industry on the environment and climate change and make good quality environment-friendly housing more affordable to the average household.