GBCSA / Certify / Edge


A simple, user-friendly online Green Building Rating software platform.

The EDGE (Excellence in Design for Greater Efficiencies) software is free and offers a measurable way to cut back on the resource intensity of your building. The online platform quickly allows you to determine the financial viability of including green aspects on your projects. It aims to make green building available for all.

The EDGE standard sets a minimum of 20% reduction across the following categories:

  • Energy Consumption
  • Water Consumption
  • Embodied Energy

For EDGE to accurately calculate your buildings inputs and outputs it uses locally adjusted data across the following sets:

  • Utility Costs
  • Climate Data
  • Building Regulations

How does EDGE work?

The GBCSA has partnered with the International Finance Corporation (IFC) to facilitate certification using the EDGE tool in Africa. Simply register to use the EDGE online software for free here. The EDGE rating system can be applied to projects across the Hospitality; Healthcare; Education; Offices; Retail and Residential sectors.

Enter basic project information online and the application will reveal how committing to a few practical energy and water saving options improves building performance at little or no cost. EDGE will help you determine, at a concept level, the financial viability of a project’s green building initiatives early in the design stage.

Should you wish to proceed to getting your project EDGE certified, which can unlock financing opportunities and authenticates your greening efforts, the certification process can get started.

It is recommended that projects targeting EDGE certification appoint an independent EDGE Expert to guide the development team from inception to execution and occupation and have an important role to play in EDGE certification and resource efficient projects. The EDGE Auditor reviews project documentation, verifies compliance with EDGE requirements, provides a rigorous check (audit) of the project submission, and recommends the project for assessment to the GBCSA.

The GBCSA offers high levels of service and technical support when it comes to getting your projects certified.

The GBCSA also offers training programmes to help you qualify as an EDGE practitioner. Part of the registration process requires that an independent EDGE Auditor is appointed and contracted to compile all the necessary documentation for submission to the GBCSA.

EDGE certificates are then issued to projects which successfully demonstrate they have met or exceeded the EDGE Standard at the Design and Construction stages of the project.

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