Brymec cast iron drainage at White City: fire and acoustic lessons for engineers
Reviewed by Tom Sullivan
First reported on The Construction Index
30 Second Briefing
Brymec has supplied a non-combustible cast iron drainage package for White City Living Phase 4 in London, a 503-apartment, three-block residential scheme by St. James Group (Berkeley Group) scheduled to complete in December 2027. The system, rated A1 to BS EN 13501-1 as a complete assembly rather than individual components, was specified to meet updated Approved Document B fire requirements while providing improved acoustic performance and durability on a high-rise structure. Installation started in December 2025, with 642 metres of cast iron pipe delivered in over 30 loads, followed by on-site inspection and a formal QA report from Brymec’s specification director.
Technical Brief
- Drainage stack specified as a single A1-rated system to BS EN 13501-1, not mixed components.
- Brymec appointed post–technical submittal, indicating formal design justification and product data review by the project team.
- 642 metres of cast iron pipe supplied in more than 30 separate site deliveries to sequence installation.
- Brymec’s specification director carried out on-site inspection of installed drainage prior to issuing a QA report.
Our Take
Within our 911 Infrastructure stories, relatively few UK residential schemes specify A1-classified drainage systems, so Brymec’s role at White City Living positions it among the more fire‑risk‑conservative product suppliers in dense urban developments.
Supplying 642 metres of cast iron drainage across three residential blocks suggests St. James Group and Berkeley Group PLC are standardising higher-spec building services on multi-block phases, which can streamline future phases by locking in tested details and installation methods.
More than 30 deliveries over a programme running to December 2027 indicates A&J Ryan Mechanical Services Ltd is operating on a tightly phased logistics model, which is increasingly common on London schemes where just‑in‑time deliveries are used to manage constrained site storage and traffic restrictions.
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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