The problem in the study is that climate change is of concern to all humans, all over the world. Climate change is directly linked to release of greenhouse gasses (CO2). Kenya is a developing country which relies mostly on green energy, thus most of the emissions that occur are due to development of the majorly rural areas into urban centres. This development necessitates the use of concrete, as it is cheap, readily available, and easy to work with. However, it has a huge impact on the environment because of the release of greenhouse gasses and exploitation of our natural resources. It is therefore prudent for engineers to find worthwhile countermeasures that are easy to implement in order to safe guard the future. In addition to the above, demolition of old and derelict buildings especially in the urban areas such as Kileleshwa, Lavington and Westlands; is occurring at a rapid pace to create room for larger high-density developments. Demolitions tend to leave large quantities of construction demolition waste which would otherwise find their way into a landfill. Which can be converted to useful materials for reuse in the construction industry. The aim of this study is therefore to establish the methods used to integrate the recycled material back into concrete, while also comparing the characteristics of concrete made with use of recycled concrete aggregates and recycled brick aggregates.