GRESB - The Performance Component

  • Ben Perrett
  • 21st April 2022

With the start of the GRESB season, it means getting ready to report all the relevant activities that have been undertaken by funds over the course of the past year.

The performance component of GRESB measures an entity’s asset portfolio performance, drawn from information collected at the asset and portfolio levels. It includes information on performance indicators, such as energy consumption, GHG emissions, water consumption and waste. The component is often overlooked but actually should garner the most attention as it is actually worth 70% of the total marks and is the most data driven part of the assessment.

GRESB has a range of requirements in relation to how utility data is reported, and it is easy to feel overwhelmed when dealing with large data sets especially when it is vital that the outputs are accurate. Etainabl has been designed with GRESB performance metrics in mind, so can help users navigate these complexities with ease:

  • Centralise all your asset data into one platform
  • Ability to store all GRESB performance metrics such as GAV, occupancy levels etc. 
  • Create custom portfolios to easily distinguish between funds
  • Store building certificates for reporting
  • Easily access and report on consumption data
  • Mark data as either landlord or tenant responsibility
  • Add floor areas to properties and associated metering, for correct GRESB allocation of space
  • Automatically calculate the carbon emissions

Some of our top tips for the GRESB performance component include:

  • Implementing a robust data management system. These are proven to be able to simplify and demystify the whole utility reporting process and can help monitor, track and review consumption throughout the year in a single centralised location 
  • Reviewing utility consumption throughout the year, not just for GRESB. It is powerful data that can enable you to identify patterns of consumption, areas of optimization and occupancy. These can all be powerful metrics when making business decisions. 
  • Requesting tenant data as early as possible, and try to make contact periodically throughout the year to not only provide data but also provide feedback to them on performance and what measures they could implement to reduce consumption. Work with tenants to incentivise data sharing practices rather than a blunt request.
  • Gathering asset information is often conducted by sending out spreadsheets, although this can result in confusion and multiple versions of spreadsheets floating about, try to avoid this as much as possible.
  • Identifying a data leader, who will be responsible for collecting and monitoring data for your organisation, this will help to streamline data processes. 

If you are struggling with analysing your portfolio and getting information sorted for reporting to GRESB, get in touch with us at or visit for more details.

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