Build Upon²

UKGBC is working alongside BPIE, Climate Alliance and 7 other Green Building Councils to develop resources and a multi-level renovation framework for local authorities to measure the impacts and wider benefits of home retrofit.


October 23, 2020


Policy & Advocacy, Membership & Networks



BUILD UPON² is Horizon 2020 funded project led by a consortium of eight national Green Building Councils with GBC España as Coordinator, the Buildings Performance Institute Europe (BPIE), and the municipal network Climate Alliance – which leads the Covenant of Mayors Office-Europe – representing 7,000+ local and regional authorities.


Across Europe, there have already been thousands of retrofit projects and programmes and there will be millions more in the coming years as we strive for net zero carbon.  However, we seldom monitor these retrofit projects to understand if they have performed as expected and what impact they have had.

BUILD UPON² is working with cities and councils across Europe to develop a framework for measuring the environmental, social & economic impacts of building retrofit.  The framework defines a suite of measurable indicators – carbon emissions, energy consumption, fuel poverty, indoor health, jobs and others – that can be measured in a simple, standardised way at either a city or project level. By capturing this data in a consistent way, the framework will link building renovation to local and national policy and decision-making processes.  It also helps build the business case for retrofit, with a view to driving greater investment in city retrofit and regeneration programmes.

UKGBC has been working closely with its European partners and with the UK’s National Steering Group to develop a framework that is suitable for the UK context.  The framework is currently being tested by 8 pilot cities and 24 follower cities across Europe.  In the UK this includes pilot city Leeds alongside follower local authorities Essex, Cambridge and Hammersmith and Fulham.

BUILD UPON² aims primarily to strengthen the effectiveness and implementation of local and national building renovation strategies. It is also intended to be used by governments worldwide, looking for guidance in their national building strategies. By the end of 2021, the project aims to see at least 10 more cities publicly commit to establish strategies to completely decarbonise their building stock by 2050.

More information & resources:

For information or to access resources related to the project, please visit the official BUILD UPON² website here.

To become a follower city, please email

For further information or to get involved please contact