Buy carbon credits that support the decarbonisation of UK homes and the wellbeing of residents living in them


Get in touch about RETROFIT CREDITS


RETROFIT CREDITS is a new carbon credits scheme that unlocks investment in social housing retrofit by verifying the emission reductions and social value of retrofit projects. It centres the impact of these retrofit activities on residents and communities by incorporating social value metrics so that the funding unlocked through carbon credits doesn’t just reduce carbon but also improves lives.

Simply put – social housing organisations receive the funding they need for their retrofit projects and you use the carbon credits generated from their projects to offset your carbon footprint whilst contributing to positive social and environmental impact!


Each tonne of CO2e reduced is eligible for up to 20 years of crediting (RETROFIT CREDITS are issued annually for up to 20 years) reflecting the real and permanent nature of the emission reductions

What are the benefits to buying credits?

Developed by HACT and PNZ Carbon, RETROFIT CREDITS is based on quality, integrity, and locality, providing you carbon credits that meet the Verified Carbon Standard, and that are locally sourced from social housing projects that not only include sustainability goals but also measurable social value outcomes that impact communities across the UK.

  • Offset your carbon emissions and work towards your environmental goals
  • Contribute to sustainability goals
  • Contribute to social value impact across the UK
  • Built on an ethical framework
  • Build into your long-term decarbonisation strategy

Is it really that simple?

We know, it sounds too good to be true,
so let’s break it down step-by-step!

The social housing provider enrols housing stock where retrofit works could improve the thermal efficiency of the home and/or reduce the carbon intensity of the heating source.

- Arctica calculates the potential emission reductions using the Verified Carbon Standard and projected funding available from RETROFIT CREDITS.
- HACT calculates the social value generated by the retrofit works using the UK Social Value Bank.
- The social housing provider uses the projected funding to inform their investment case for retrofit activities.

Once retrofit works are complete, Arctica originates Verified CarbonUnits (RETROFIT CREDITS) with Verra Registry backed by the certified emission reductions. This ensures the uniqueness and integrity of the credits issued.

- Arctica and HACT manage the sale of the RETROFIT CREDITS.
- The social housing provider receives payment for the emission reductions and social value created or uses the RETROFITCREDITS to compensate their unabated emissions.

Calculating the social value

To calculate the social value attached to RETROFIT CREDITS, we used our UK Social Value Bank  which was developed with the sector for the sector. The social value can be aggregated to measure the impact of energy efficiency programmes at neighbourhood, place and national levels.

RETROFIT CREDITS Verified Carbon Units + Social Value

A certified product

HACT, along with our project partner, PNZ Group, has developed a methodology to measure the carbon savings and social value created through retrofit activity.  To ensure the environmental integrity of the issued credits, this project has been developed under the Verified Carbon Standard, the world’s leading certification program for emission reduction projects. ​ 

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Contact our Customer Relationship Lead, Antoine Pellet

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