Updates to Part L - Are you ready?

Thursday, April 7, 2022

Industry News

Craig Degnan

The first major update in 8 years of the Building Regulations Approved Document Part L will be enforced from 15th June 2022 and will apply to dwellings and non-domestic buildings. The regulations introduce significant improvements in energy efficiency standards and carbon reduction, and alongside the new Approved Document Part O -Overheating aim to deliver the interim step towards the new Future Building & Future Homes Standards in 2025.

Key changes include:

27 to 31% carbon reduction over current regulations
Compliance Requirements for primary energy, CO2, fabric efficiency standards
Minimum standard for fabric & services
A significantly lower carbon factor and significant compliance advantages using heat pumps
Improved general services standards
Thermal bridging - removal of Accredited Construction Details (ACD’s)
Heating systems must be designed for 55oC
100% air testing is required in dwellings
Planners can set higher standards than Building Regulations
Energy modelling / benchmarking mandatory for non-domestic buildings over 1000m2

The transitional arrangements will last for one year, but are on a building-by-building basis (not site by site). So watch out anyone involved on large residential developments!

Key changes include:

27 to 31% carbon reduction over current regulations
Compliance Requirements for primary energy, CO2, fabric efficiency standards
Minimum standard for fabric & services
A significantly lower carbon factor and significant compliance advantages using heat pumps
Improved general services standards
Thermal bridging - removal of Accredited Construction Details (ACD’s)
Heating systems must be designed for 55oC
100% air testing is required in dwellings
Planners can set higher standards than Building Regulations
Energy modelling / benchmarking mandatory for non-domestic buildings over 1000m2

The transitional arrangements will last for one year, but are on a building-by-building basis (not site by site). So watch out anyone involved on large residential developments!

Key changes include:

27 to 31% carbon reduction over current regulations
Compliance Requirements for primary energy, CO2, fabric efficiency standards
Minimum standard for fabric & services
A significantly lower carbon factor and significant compliance advantages using heat pumps
Improved general services standards
Thermal bridging - removal of Accredited Construction Details (ACD’s)
Heating systems must be designed for 55oC
100% air testing is required in dwellings
Planners can set higher standards than Building Regulations
Energy modelling / benchmarking mandatory for non-domestic buildings over 1000m2

The transitional arrangements will last for one year, but are on a building-by-building basis (not site by site). So watch out anyone involved on large residential developments!