Criteria for determining whether an existing building is a higher-risk building during building work

Welsh Government, 2026
Criteria for determining whether an existing building is a higher-risk building during building work Download document

Document Status

Current

Supplement

Core Supplement

Abstract

Provides guidance on how to check if building work to an existing building is covered by the higher-risk building regime in Wales. Covers: guidance for understanding whether the building is a higher-risk building during building work in an existing building; use criteria; counting storeys and measuring height; and glossary of key terms.

History

Sourced from: https://www.gov.wales/criteria-determining-whether-existing-building-higher-risk-building-during-building-work 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: 18 June 2026.

Subjects

  • Legal issues and management
  • Building control
  • Building control, Wales
  • Special subject areas
  • Fire

Publisher History

The Welsh Government is the devolved government for Wales. They publish a number of strategies, policies, consultation papers, circulars, leaflets and posters. Previously known as Welsh Assembly 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.