Building regulations

The ECO outlines three distinct areas that the energy suppliers are obliged to help make improvements on:

  • Conservation of fuel and power in new and existing buildings other than dwellings, Part L2
  • Installation of energy efficient ventilation, Part F
  • Heat producing appliances, Part J
  • Electrical work, Part P

For more advice on how any of these building regulations may affect your project, contact your Technical Sales Manager who can advise further.

  • Part L2
  • Part F
  • Part J
  • Part P

Part L2 A & B 2013 of the Building Regulations covers the conservation of fuel and power in buildings other than dwellings.

The criteria covers:

  1. The CO₂emission rate of the building
  2. Energy efficiency performance of the building fabric
  3. Passive control measures to limit solar gains
  4. Quality of design and construction
  5. Provision of information for the building operator

The full Building Regulations Part L2 A & B 2013 documents can be accessed from the Planning Portal website.


Part F of the Building Regulations ensures the correct installation of ventilation systems to make sure they achieve the correct level of energy efficiency. This includes guidelines on:

  • Domestic ventilation compliance
  • Air permeability
  • Installation and commissioning
  • Control of ventilation

To download a copy of the Building Regulations Part F, visit the Planning Portal website.


Part J of the Building Regulations provides guidance for the safe installation and use of all combustion appliances and liquid fuel storage systems. The Regulations cover the following:

  1. Air supply
  2. Discharge of products of combustion
  3. Warning of release of carbon monoxide
  4. Protection of building
  5. Provision of information
  6. Protection of liquid fuel storage systems
  7. Protection against pollution

To download a copy of the Building Regulations Part J, from the Planning Portal website.


Part P of the Building Regulations aims to minimise the occurrence of electrical hazards. It covers all electrical work carried out in England and Wales from the initial design all the way though to testing.

Visit the Planning Portal website for more details and to download a copy of Building Regulations Part P.