The Green Star SA Existing Building Performance Tool covers the same environmental categories addressed in the Green Star SA new building tools (Design / As Built) but the focus is on the efficient operations and management of the building in order to maintain optimal performance.

The tool is not a design tool and thus has only an as-built rating. The rating is valid for a period of 3 years in order to ensure the building is continually well operated and maintained. Items such as energy and water monitoring, management policies and plans are required in order to achieve the rating. The tool also addresses the relationship between landlord and tenants, setting up a win-win situation with the green lease toolkit.

Development types included in the EBP tool:

Developed to cater for a broad range of commercial buildings including office buildings, retail buildings, public assembly buildings this tool also rewards a journey to World Leadership and recognises all 1-6 star ratings.A key component of the energy & water categories of the Existing Building Performance Tool is the GBCSA’s Energy Water Performance (EWP).

Currently developed for Office buildings, this tool is a free resource which allows comparison of energy and water performance against industry benchmarks. It allows existing building owners and/or portfolio managers to easily benchmark their properties in terms of energy & water performance, informing key investment decisions. The EWP is 40% to the Existing Building Performance Certification but is available as a separate certification of energy and water performance