Are you visiting from outside your region? Visit your regional site for more relevant services and pricing.

Changes to Part L and Part F of the Building Regulations for new dwellingsOctober 2019

Julia Evans CEO

The Government has published the first of two consultations on changes to the Building Regulations. Specifically, Part L (conservation of fuel and power) and Part F (ventilation).

This consultation covers new homes and includes two options to raise the energy efficiency standards in Part L, in 2020, as a stepping-stone to the Future Homes Standard.

It also includes proposals for changes to the ventilation standards of the Building Regulations (Part F), more stringent transitional requirements for the energy efficiency standards and a clearer role for planning authorities in setting energy efficiency standards. 

A further consultation will follow, in the coming months, proposing changes to the energy efficiency standards for non-domestic buildings and for building work to existing homes and non-domestic buildings; and on preventing overheating in buildings.

You can respond to the consultation via the online survey on the site or direct to BSRIA Chief Executive, Julia Evans ( to contribute to BSRIA’s response.

Government is also consulting on a new release of BRE’s Standard Assessment Procedure (SAP) software – more information will be available when it goes live shortly.

Finally, new research has been published on overheating and on ventilation and indoor air quality in new homes.

Airtightness testing equipment

BSRIA Instrument Solutions offers a comprehensive range of airtightness equipment available to purchase or hire