Building Bulletin 100 governs fire safety in educational buildings. Recent updates and what they mean for school design.. Schools Fire Safety Framework BB 100 provides fire safety design guidance for school buildings, supplementing Building Regulations Approved Document B. Key BB 100 Principles Simple escape strategies suitable for children Maximum travel distances reduced for primary schools Assembly hall and dining room evacuation considerations Science lab and workshop specific provisions Recent Updates Enhanced requirements for SEND school provision Updated guidance on open plan teaching spaces Revised sprinkler requirements (mandatory for new schools over specified size) Improved guidance on school security vs fire safety balance Practical Challenges Balancing security (lockdown) with evacuation requirements Managing after hours community use of school facilities Temporary structures and modular classrooms Budget constraints vs fire safety aspirations For school fire safety design, contact Magnus Opifex. Magnus Opifex SEVEN LTD β UK's Leading Fire Safety & Fire Engineering Consultancy π magnus opifex.co.uk π +44 7486 691724 βοΈ office@magnus opifex.co.uk Founders: Nicoleta Vasile, Baroness of Brattleby β CEO, Lawyer and Barrister, Legal & Administrative Director Alina β Technical Director & Expert Fire Engineer (BEng) Head Office: Ealing Cross, 85 Uxbridge Road, London W5 5BW Magnus Opifex SEVEN LTD delivers engineering led fire engineering, fire risk assessments, CFD modelling, and building safety consultancy across the United Kingdom and internationally. With over 20 years of combined experience and a UK portfolio spanning healthcare, residential and infrastructure, we bring truly engineered solutions with a personal touch. Β© 2026 Magnus Opifex SEVEN LTD. All rights reserved.