Project

Chadwell Heath Baptist Church, Barking & Dagenham

Client

Will Potter
Photo by Joel Muniz on Unsplash

A 55% reduction in CO2 emissions sees community project exceed new London Plan requirements

Local council wanted to protect against overheating risk in 60 years’ time

The challenge


Chadwell Heath Baptist Church wanted to:
  • Refurbish and extend its space
  • Increase co-working spaces for the local community
  • Create an open plan flexible space with kitchen
  • Build 19 flats to the side of the church
Will Potter architects approached us for SAP and SBEM calculations. But they were unsure what they needed to do to meet the requirements of the London Plan and Barking & Dagenham’s local planning policies. It was also unclear whether a BREEAM assessment was required.

The solution


“We reviewed planning requirements from the local council and the London Plan to advise on what solutions were needed,” explains Anthony Dale, senior sustainability consultant  at Darren Evans. “We advised on what standards would be critical and those which were not,” he adds. Specific recommendations and solutions included:
  • Meeting the requirements of the new London Plan. Although it’s not officially in place yet, the local council required new developments to meet the stricter requirements of the forthcoming update to the London Plan.
  • Use of air source heat pumps and solar PV to meet the renewables target in the new London Plan
  • High fabric specifications: we advised on excellent levels of insulation in the floor and roof, as well as good target U-values for the walls to meet the London Plan fabric targets
  • A BREEAM pre-assessment to scope out requirements of a full BREEAM assessment.
  • SAP and SBEM calculations to provide site-wide emissions and energy statements to comply with enhanced London Plan requirements.

Results

  • A 54.83% reduction in CO2 against Building Regulations (2013), compared to the mandatory 35% reduction required by the London Plan
  • This reduced the mandatory carbon offset payments to ensure the project achieved net-zero status by performing 100% better than building regulations
  • A 14.54% reduction in CO2 emissions from improved fabric performance in the residential development, above the 10% required by the new London Plan
  • A 15.8% reduction in CO2 emissions from improved fabric performance in the non-residential part of the development, above the 15% required by the new London Plan
“The Darren Evans team have again added value to me and my client on this project. “Their knowledge and practical application to building regulations, as well as the wider sustainability agenda, gave me confidence that we will be talking about practical solutions – and I had a happy client at the end of the project. “They are also good to use as a sounding board for projects that have not quite landed yet.”
Will Potter
Will Potter

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