Caxton House

Caxton House

Caxton House is a 3-story office building located in the Central Business District of Nairobi, Kenya. The project consists of a retrofit, making use of most elements of the existing building with renovations to meet the EDGE standard. Caxton house was renovated under the auspices of Sayani Investments Ltd., a local real estate investment company.

The project undertook a renovation of all electrical and plumbing systems introducing efficient lighting, solar photovoltaic power generation and efficient flush/flow plumbing fixtures. By re-using most existing building features such as floor and roof construction, as well as external and internal walls, Caxton House was able to achieve substantial reductions in the energy embodied in construction materials, thereby yielding a more sustainable construction project and a reduced carbon footprint.

Caxton House has received Final EDGE Certification from Green Business Certification Inc. (GBCI).

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, Energy-Saving Light Bulbs – Internal Spaces, Energy-Saving Light Bulbs – External Spaces, Solar Photovoltaics


Low-Flow Faucets in Bathrooms, Efficient Flush for Water Closets in All Bathrooms, Water-Efficient Urinals in all Bathrooms, Water-Efficient Faucets for Kitchen Sinks


Floor Slabs – Re-Use of Existing Floorslab, Roof Construction – Re-Use of Existing Roof, External Walls – Re-Use of Existing Wall, Internal Walls – Re-Use of Existing Wall, Flooring – Re-Use of Existing Flooring, Window Frames – Re-Use of Existing Window Frames


Caxton House Kenyatta Avenue Nairobi, Nairobi 00100 Kenya


Final EDGE Certification


February 1, 2022

Floor Space (m2)


Total CO2 Savings (annually)


Certified By

Green Business Certification Inc.

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