1. Home
  2. Building Regulations and Standards - Energy

Building Regulations and Standards - Energy

Part L of the Building Regulations for England and Wales, and Section 6 of the Scottish Standards set levels for building energy efficiency and carbon emissions.
What are the Building Regulations and Standards for energy efficiency in Great Britain?

The energy efficiency requirements for buildings are contained in Part L of the Building Regulations in England and Wales, and Section 6 (Energy) to the Building Standards in Scotland. The regulations are supported with guidance documents, known as the Approved Documents in England and Wales, and the Technical Handbooks in Scotland. The guidance documents explain how to actually reach compliance. 

Significant updates have recently been introduced to the Building Regulations and Standards in England, Scotland and Wales. The links below will give you more information on the specific changes in the different countries. 

Find out more about the Regulations / Standards

England Part-L 2021 New Homes Article 4:3
Insulation Boards

Approved Document L - England

Find out more about the Building Regulations in England.

Coleg Cymunedol y Dderwen Close Case Study 4:3
Insulation Boards

Approved Document L - Wales

Find out more about Part L of the Building Regulations in Wales.

South Street Front Case Study- 4:3
Insulation Boards

Section 6 (Energy) - Scotland

Find out more about Section 6 of the Building Standards in Scotland.

CPD training for Part L and Section 6

Our suite of CPD training presentations can be delivered in-person or virtually. CPDs are available for Part L England, Part L Wales and also Section 6 for Scotland, covering new and existing dwellings and buildings. 

Book a CPD
image of a virtual CPD taking place on a laptop
screenshot from the Kingspan Insulation U-value calculator

U-value calculator

Try our free online U-value calculator to calculate the thickness of material needed to meet the new levels of thermal performance. With a number of roof, wall and floor constructions, the calculator is quick and easy to use. 

Start a calculation

Discover More

Future Homes Image

What is The Future Homes Standard?

In this article we will take a look at what the new Future Homes Standard means for projects.

Knowledge Article5 min read
Why detailing matters in Part L 2021 and Section 6 2021

Why Detailing Matters in Part L 2021 and Section 6 2021

We look at detailing and addressing thermal bridging in regards to updates to Part L and Section 6

Knowledge Article4 min read
Why Fabric First Image 1

Why fabric first?

What is a fabric first approach?

Knowledge Article5 min read
Lower Furlong Estate Sharnbrook Front Case Study 4:3

Understanding the Passivhaus Standard

Passivhaus is a leading global energy efficiency standard.

Knowledge Article7 min read

Page reviewed 3/2/2026

Talk to Us

What can we help you with?
Click here to request a sample
Stay Updated
BACK TO TOP
Contact us
Kingspan Insulation
Kingspan Technical Insulation
Kingspan Great Britain
Kingspan Insulation
Kingspan Technical Insulation
Legal information
Cookie Policy & Control
Terms & Conditions of Website Use
Website Privacy Notice
Modern Slavery Act Statement
Group Approach to Tax
Gender Pay Gap
Direct Marketing Consent Notice

© 2026 Kingspan Holdings (IRL) Limited, All Rights Reserved