Approved Document L: Energy and greenhouse gas emissions, frequently asked questions

Building Regulations 2010: Approved Documents L FAQ

Ministry of Housing, Communities and Local Government, 2026
Approved Document L: Energy and greenhouse gas emissions, frequently asked questions Download document

Document Status

Current

Supplement

Core Supplement

Series

Building Regulations 2010: Approved Documents

Abstract

Provides answers to common questions relating to renewable electricity generation size and functional requirements.

History

Last updated: 8 September 2026 - Requirement L2, Requirement L3 - Renewable electricity generation functional requirement. Sourced from: https://www.gov.uk/guidance/approved-document-l-energy-and-greenhouse-gas-emissions-frequently-asked-questions and converted to pdf. Whilst we endeavour to capture all updates it is subject to receiving alerts from the publisher and there may be formatting or punctuation changes applied to the html version that do not affect the text. Document type: guidance. First published: 8 September 2026.

Subjects

  • Legal issues and management
  • Building control
  • Energy efficiency/Energy Management
  • Building control, England
  • Thermal insulation
  • Special subject areas
  • Environmental issues/energy

Publisher History

The Ministry of Housing, Communities and Local Government is a UK Government ministerial department with responsibility for several policy areas including building regulation, community integration, economic development in coastal and seaside areas, energy efficiency in buildings, high streets and town centres, housing, local enterprise partnerships (LEPs) and Enterprise Zones, localism, planning reform and the planning system. They were previously known as the Department for Levelling Up, Housing and Communities, MHCLG, Department for Communities and Local Government, the Office of the Deputy Prime Minister, and the Department for Transport and Local Government.

Information

NBS

NBS has produced specification systems and information products for construction industry professionals for more than 40 years. The National Building Specification is the recognised UK national standard and is used by over 5,000 organisations. NBS is part of RIBA Enterprises Ltd.

Accuris

We connect trusted knowledge to customers' workflows – mitigating risk, increasing efficiency and accelerating innovation For more than 60 years, leading R&D and engineering-intensive organizations have relied on us to achieve on-time, on-budget delivery of complex projects and new products. We deliver an unparalleled combination of technical content and Artificial Intelligence (AI) technologies to surface answers from the vast universe of technical knowledge, both inside and outside the organization. In a single interface, we connect the dots between information scattered across many different sources, allowing technical professionals to make better, more informed decisions faster.