United Infrastructure’s Bromley-By-Bow Gasworks: design and delivery notes for engineers
Reviewed by Joe Ashwell
First reported on The Construction Index
30 Second Briefing
United Infrastructure has secured a Cadent Gas contract to redevelop the Bromley-By-Bow Gasworks, home to the UK’s largest collection of Grade II listed gasholders, as part of a 15‑month programme started in late November 2025. Works include isolating the site from the gas network, demolishing redundant buildings, rationalising legacy pipework and fully rebuilding the gas facility on a reduced footprint with new civil, mechanical and electrical installations. The upgraded, quieter infrastructure is a key enabler for the Bromley-By-Bow masterplan, which plans over 2,150 homes in 13 buildings, some within restored gasholder frames.
Technical Brief
- Initial phase covers vegetation clearance, site establishment and CDM-compliant welfare set-up before heavy works.
- Isolation of Bromley-By-Bow Gasworks from Cadent’s wider network is a prerequisite for demolition sequencing.
- Demolition scope targets redundant buildings only, retaining Grade II listed gasholder structures for later integration.
- Pipework rationalisation will remove legacy layouts, simplifying future maintenance and reducing above-ground congestion.
- New gas facility is relocated onto adjacent land with a smaller operational footprint, freeing central plots.
- United Infrastructure holds single-point responsibility for civil, mechanical and electrical installation interfaces on the rebuild.
Our Take
Among the 733 Infrastructure stories in our database, relatively few involve legacy gasworks in dense urban areas like Bromley-By-Bow, signalling that Cadent’s London landholdings are becoming a niche but important source of brownfield supply for housing-led masterplans.
A 15‑month programme on the Bromley-By-Bow Gasworks suggests United Infrastructure will need tight sequencing of remediation, civils and utility diversions to avoid locking in delays to the 13 planned residential buildings in the wider masterplan, which is a recurring risk pattern on constrained London regeneration sites.
With no commodity angle and no explicit deal_type recorded, this sits in our coverage alongside other utility-land regeneration schemes where long-term value for the asset owner (here Cadent) is driven less by operational returns and more by de-risking contaminated land to unlock future disposals or JV development structures.
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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