Roof workers case: HSE action on B&O Developments and lessons for CDM teams
Reviewed by Joe Ashwell

First reported on The Construction Index
30 Second Briefing
B&O Developments and director Sanjay Swaminaryan were fined at City of London Magistrates’ Court after members of the public reported unsafe roof work on a Kings Cross site to the Health and Safety Executive. The prosecution centred on workers operating at height without adequate edge protection or fall-arrest systems, breaching the Work at Height Regulations 2005. The case signals that HSE will act on public reports of poor temporary access, scaffolding and roof-work controls, with direct implications for contractors’ site supervision and CDM compliance.
Technical Brief
- Failure mechanism involved unprotected roof edges creating uncontrolled fall potential from full storey height.
- Investigation focused on absence of collective protection (guardrails, toe-boards, scaffolds) and personal fall-arrest systems.
- Inspectors also examined access routes to the roof, including ladders and temporary platforms, for compliance gaps.
- Monitoring failures were linked to inadequate site supervision and ineffective implementation of the contractor’s own RAMS.
- Remediation would typically require immediate work stoppage, installation of compliant edge protection and re-briefing under revised method statements.
- Prosecution of both the corporate entity and named director underlines personal liability for managing work-at-height risks.
- Case reinforces that ad hoc roof work without engineered temporary works design is now a clear enforcement target.
Our Take
HSE appears repeatedly in our recent Hazards coverage, including the Len Smith & Son and Lima Construction fall cases, signalling that enforcement around work-at-height failures is currently one of the regulator’s most active fronts in the United Kingdom.
With 25 Hazards stories and hundreds of tag-matched Safety/Failure pieces in our database, the Kings Cross and City of London incident involving B&O Developments sits within a pattern where smaller contractors are disproportionately represented in HSE prosecutions for basic fall-prevention lapses.
The related HSE cases involving falls through fragile roofs or unprotected openings suggest that, for urban sites like Kings Cross, inspectors are likely to scrutinise not just edge protection but also temporary coverings, access routes and supervision of subcontract roof workers as part of any investigation.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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