Approved Document B: Fire safety — Post-Grenfell consolidated perspective on the 2019 edition + 2020/2022/2025 amendments and the 30 September 2026 amendment booklet

Approved Document B: Fire safety — Post-Grenfell consolidated perspective on the 2019 edition + 2020/2022/2025 amendments and the 30 September 2026 amendment booklet. Statutory guidance under the Building Regulations 2010 (England). The current published edition is the 2019 edition incorporating the 2020, 2022 and 2025 amendments (Circular 01/2025, 2 March 2025). A further amendment booklet has been published with provisions taking effect 30 September 2026, focused on high-rise residential buildings (e.g. second-staircase threshold at 18 m). Post-Grenfell deep-dive perspective. This page provides a structured summary, key provisions, and practical guidance on the application of Approved Document B — Post-Grenfell Perspective (2025 Amendments) to UK fire safety engineering, building design, and Building Safety Act compliance.