Understanding UK Building Regulations

What is Part L and Section 6?

Part L is an Approved Document within the Building Regulations for England dealing with the Conservation of Fuel and Power. It ensures that the design and construction of new buildings, as well as work done on existing buildings, meets targets designed to limit the associated CO2 emissions from the building following its construction or modification.

Historically, the Part L Approved Document for the Conservation of Fuel and Power has applied to both England and Wales. However, powers for the Welsh Government to make their own Building Regulations were transferred to Welsh Ministers on 31st December 2011.

Section 6 of the Scottish Building Regulations is the Technical Handbook that deals with Energy within the built environment. Section 6 supports the Climate Change (Scotland) Act 2009 as it seeks to meet the target of an 80% reduction in carbon emissions by 2050 by ensuring that effective measures for the conservation of fuel and power are taken with constructing new or modifying existing buildings.

At Celotex we have got Part L England 2013, Part L Wales 2014 and Section 6 Scotland guides with all the information surrounding the Building regulations and changes occurring, which are free to download.

Watch the Building Regulations Webinar.

For information about the new Part L Wales 2014 changes, here is the video from the launch of the documents by the Welsh Government. To watch the full set of presentations visit the Welsh Government website.


England – Part L

Download Guide to Part L, England ›

New build

  • Domestic CO2 Reduction over Part L 2010: 6%
  • Non-Domestic CO2 Reduction over Part L 2010: 9%
  • New energy target called FEES (Fabric Energy Efficiency Standard) ensures that the Fabric of the building must meet minimum standards
  • Overall CO reduction for domestic is aggregate with different house types

Scotland – Section 6

Download Guide to Section 6, Scotland ›

New build

  • 30% Reduction in CO2 emissions over 2007 regulations
  • U-values improved by around 25% and air tightness by 30%
  • Heat loss from party wall to be addressed
  • Compliance possible by two routes: Calculation or Simplified Approach
  • Using the parameters of the Notional Building, depending on fuel type, the Simplified Approach offers a solution that is deemed to comply
  • Future revision proposals: dwellings by 21% and non-dwellings by 43% on current 2010 standards

Building Regulation Webinars

The Celotex Part L- How do we comply? Audio webinar includes:

  • What are the main routes for compliance to 2013 regulations?
  • How 2013 regulations provide a stepping stone to 2016 zero carbon?
  • What will be needed to hit the 2016 Zero Carbon Target and is it possible to do it?
  • What is the recipe for success now that FEEs are in the mix?
Watch our Webinars ›

Download our guides to Building Regulation changes

The Celotex Building Regulation Guide will give you all the information you need regarding the changes and how to comply.

Download our guide to Part L - England. Download now. Download our guide to Part L - Wales. Download now. Download our guide to Section 6 - Scotland. Download now.

Building Regulations Blog