NHBC Standards

Your essential guide to house building from foundations to roofs and finishing

a photo of the nhbc standards pamphlet on a tablet

What are NHBC Standards?

The NHBC Standards define the technical requirements and performance standards for the design and construction of new homes registered with us and provide guidance on how these can be achieved. 

Our dedicated Standards team is committed to continuous improvement. They work with stakeholders across the industry to ensure that the NHBC Standards keep pace with regulatory change, reflect the latest consumer expectations and the industry’s needs. This means that the Standards are always relevant, providing additional support and guidance to help builders and developers to raise standards in house building by championing high-quality homes and protecting homeowners.

NHBC Standards

a photo of the nhbc 2023 standards on a laptop

NHBC Standards 2023

NHBC Standards 2023 is the current version and available to view online. It applies to new homes where the foundations were started on or after 1 January 2023.

View more

NHBC Standards 2024

Coming soon, the NHBC Standards will apply to new homes where the foundations are started on or after 1 January 2024.

What's changing in the NHBC Standards 2024?

These are the most significant changes:

  • a new Chapter 4.6 on engineered fill foundations covering NHBC guidance on meeting the Technical Requirements and recommendations for using engineered fill foundations to support residential developments, external works and infrastructure
  • revisions to Chapter 6.1 including the provision of cavity trays to complicated junctions and additional insight on the design and specification of windposts
  • updates to Chapter 6.3 on internal masonry walls and fire-stopping details
  • improvements to Chapter 7.2 to provide more information on durability, ventilation strategies, integration of roof solar technologies and roof cassette systems
  • a revision of Part 8 (Chapters 8.1 – 8.6) to improve the usability of the sections and improve guidance on heat pumps and solar photovoltaics, ensuring alignment with the Requirements for Electrical Installations (IET Wiring Regulations 18th Edition) and weep hole locations in relation to gas meter boxes.

We’ve also made changes to:

  • Chapter 3.3 - more information on durability of timber
  • Chapter 5.1 - small changes to cover cold bridging and radon maps updates
  • Chapter 5.2 – changes to contaminants and DPMs
  • Chapter 5.4 - small changes for podiums
  • Chapter 6.2 – changes relating to timber frame expansion and contraction and permissible gaps under openings
  • Chapter 6.4 – timber and concrete upper floors – additional guidance on joist spacing and clearance
  • Chapter 6.6 - updates to fire precautions, design of steps, guarding and balustrades, structural design
  • Chapter 7.1 – additional guidance covering balcony drainage edge design and upstands to podium decks and flat roofs.

Conversions and renovations 2023

The Standards for Conversions and Renovations provide guidance on the type of project that will be acceptable to NHBC, the scope of the survey(s) and work that will be required.

Conversions and renovations are projects that involve work to existing buildings or parts of existing buildings.

Examples include:

  • the conversion of an existing residential building into flats
  • the renovation of an existing residential building(s)
  • the subdivision or merging of existing dwelling(s) or flat(s)
  • the addition of a new storey to an existing building
  • façade retention schemes.


Previous versions of NHBC Standards

The NHBC Standards online archive contains issues going back to 2010. You can view them all below.

Waits for no-one.

Tickets are LIVE!

At our technical seminar series you can hear from the people driving the agenda, learn from those who are using new technologies and ask experts about the challenges your business faces as you move towards 2025 and beyond. Don't get left behind!

Book your tickets

Sign up to our monthly e-newsletter

Clicks & Mortar includes all the latest information on the NHBC Standards and Building Regulations as well as details of NHBC training, webinars and other events. It’s the best way to regularly keep up-to-date with our technical news and more.

Sign up now