Mzizi is a new high-rise development located in the sought-after Two Rivers mixed-use development in Nairobi, Kenya. The Two Rivers Development is a smart and sustainable center with a water treatment plant that will recycle 80% of grey water and a 1.2 MW solar plant, developed by Centum.

The 300-unit development will consist of two towers with a mix of one-bedroom and two-bedroom apartments that will provide affordable rental units in the affordable housing market in Nairobi, Kenya and will be acquired and managed by International Housing Solutions (I.H.S.) Kenya.

Mzizi has received a Preliminary EDGE Certificate from Green Building Council South Africa.

Predicted Savings of EDGE Certification


Energy Savings*


Water Savings


Less Embodied Energy in Materials

*Part of the energy efficiency percentage may be associated with virtual energy for comfort depending on the presence of heating and cooling systems. Note that virtual energy does not contribute savings to utility bills.

Technical Solutions


Reduced window to wall ratio, reflective paint/tiles for roof, reflective paint for external walls, energy-saving light bulbs for internal and external spaces, lighting controls for corridors and staircases, solar photovoltaics covering 10% of total elecricitity use, and smart meters.


Low-flow showerheads, low-flow faucets for kitchen sinks and washbasins, and dual flush for water closets.


In-situ reinforced concrete slab for floor and roof construction, machine-cut unpolished stone blocks for external walls, medium-weight hollow concrete blocks for internal walls, ceramic tile for flooring, and steel window frames.


I.H.S. Mzizi Off Limuru Road Two Rivers Nairobi, Nairobi Kenya


Preliminary EDGE Certificate


September 1, 2021

Floor Space (m2)


Total CO2 Savings (annually)


Client Details

Project Auditor

Sample Auditor

Project Expert

Sample Expert

Certified By

Green Building Council of South Africa

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