Last edited 23 Aug 2020

Retrofit-led regeneration in Greater Manchester

One statistic I have used a lot in the last 6 years is that if we are to meet the target of reducing CO2 emissions by 80% of 1990 levels by 2050, we need to refurbish one home every 45 seconds. Yes, you read that right, one home every forty-five seconds! While this is an important statistic to get people to sit up and take notice, we now need to move the discussion on from what needs to be done, to how it can be done, and which barriers we need to overcome.

On 21 March 2018, the Mayor of Greater Manchester, Andy Burnham, will be holding a green summit setting out his vision for a carbon neutral Greater Manchester.

In the lead up to this, I attended an insightful workshop in Manchester with delegates from the ten local authorities that make up the Greater Manchester Combined Authority as well as delegates from the UKGBC and the Energy Saving Trust, among others. This was to discuss the need for quality domestic retrofit projects in the UK and to inform the Mayor of Greater Manchester on what needs to be included in his green vision for Greater Manchester.

A common and recurring theme from the workshop was the need for high quality retrofit projects that are done on a large scale, using a holistic approach, which doesn’t just focus on energy efficiency.

It is not just the energy performance of the homes that important in a retrofit. Installing energy efficiency measures is a great opportunity to improve the health and wellbeing of the occupants by ensuring factors such as daylighting, ventilation and security are improved.

What was also apparent from the discussion was the need to perform ‘deep’ retrofits to existing homes, at a community scale to bring them up to the highest possible energy efficiency standard. This is to make sure we meet our 2050 targets without having to retrofit the same homes multiple times.

To achieve the retrofitting at this scale, collaboration between local authorities across the UK and a regular long term funding mechanism need to be in place. Having a long-term mechanism in place, means a level of trust would be developed between the product manufacturers and the householders, to ensure that retrofit works can be done to their homes. This will also generate interest among the local community for work to be done on their homes and to contribute to the local economy.

One final outcome from the workshop was that technical standard needs to be used on retrofit projects, to make sure the required performance will be met in practice, and that the retrofit itself is of a high quality.

Overall, the workshop was positive about what can be done to improve the quality and energy performance of existing homes, and that there is a place for standards such as BREEAM, Passivhaus and EnergieSprong to help drive these improvements forward.

One other key theme from the workshop is a need for a joined up approach to retrofit and a common standard to work to. One such scheme is BREEAM Domestic Refurbishment.