McLaughlin & Harvey’s £210m Sheffield Forgemasters shop: design and delivery notes for engineers
Reviewed by Joe Ashwell

First reported on The Construction Index
30 Second Briefing
McLaughlin & Harvey has secured a £210m contract to build a 30,000 m² machine shop for Sheffield Forgemasters on a 16-acre brownfield site at Weedon Street, adjacent to the existing Brightside Lane works. Advanced works have already installed more than 4,000 piles, capping beams, pile caps, and site-wide drainage and storm-water attenuation tanks, with structural steel erection scheduled to start in January 2026. The facility will house 24 new machines, including some of the world’s largest vertical turning lathes, and will sit alongside Vinci’s £138m open-die forging line on the North Brightside Lane site.
Technical Brief
- Advanced works include piling for both the building superstructure and heavy machine base foundations.
- More than 4,000 piles are already installed, with associated capping beams and pile caps completed.
- Site-wide drainage and buried services have been laid concurrently with piling to minimise later rework.
- Storm-water attenuation tanks are installed as part of the early civils package on the brownfield plot.
- Arup’s scope covered ecological and travel assessments to support planning and access arrangements for the facility.
- JLL acted for Sheffield Forgemasters on site acquisition and planning submissions for the Weedon Street development.
Our Take
Within our 335 Infrastructure stories, very few UK items combine a £200m‑scale contract with a defence-linked client like the Ministry of Defence, signalling that this Sheffield Forgemasters machine shop sits in a relatively strategic tier of industrial projects rather than standard commercial sheds.
The 16‑acre Weedon Street brownfield redevelopment adjacent to existing Brightside Lane facilities suggests a long-term consolidation of heavy engineering capacity in Sheffield, which is likely to anchor specialist skills and supply chains in South Yorkshire rather than dispersing them to newer industrial parks along the M1 corridor.
Taken together, the £210m machine shop award to McLaughlin & Harvey and the separate £138m Vinci contract for the UK’s largest open-die forging line indicate a staged capital programme at Sheffield Forgemasters, which contractors and consultants such as Arup, Bond Bryan Architects and JLL can treat as a multi-package pipeline rather than a one-off build.
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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