Purple Tower
Purple Tower is a 62m-high, mixed-use development located along Mombasa Road, in Nairobi, Kenya. The building includes a total of 3 floors of retail space and 12 floors of office space.
The project was developed by Purple Dot International, a local real estate development company which seeks to integrate green building thinking into all future projects. Beyond EDGE, the project is committed to additional sustainability initiatives such as operational waste recycling.
To meet international standards for resource efficiency, energy and water-saving technologies were incorporated into the design, construction and internal processes of the building. Higher thermal performance glass, energy-saving lighting equipped with occupancy sensors, and solar photovoltaics reduce the building’s energy use, while water-efficient plumbing fixtures reduce its water use.
Purple Tower has received Final EDGE Certification from Green Business Certification Inc. (GBCI) in June 2025.
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
Energy
Reduced Window to Wall Ratio, Insulation of Roof, Higher Thermal Performance Glass, Variable Refrigerant Volume (VRV) Cooling System, Energy-Saving Light Bulbs – Internal Spaces, Energy-Saving Light Bulbs – External Spaces, Solar Photovoltaics covering 20% of electricity use.
Water
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
Materials
Concrete filler slab for the floor, aluminum sheets on steel rafters for the roof, in-situ reinforced wall for external and internal walls, ceramic tiles and finished concrete floor for flooring and aluminum window frames.
Location
Purple Tower Mombasa Road Nairobi, Kenya
Stage
Final EDGE Certificate
Date
June 1, 2025
Floor Space (m2)
20,067
Total CO2 Savings (annually)
238
Client Details
Project Auditor
Ted Otieno
Project Expert
Linda Nyawira
Certified By
Green Business Certification Inc.