Bachy–Kilnbridge UrbanCore: integrated city‑centre delivery explained for engineers
Reviewed by Joe Ashwell
First reported on The Construction Index
30 Second Briefing
Bachy Soletanche and Kilnbridge have launched UrbanCore, a joint offering that combines piled foundations, basement construction and superstructure delivery into a single integrated package for commercial and basement‑led urban schemes. The model replaces traditional separate groundworks and frame contracts by aligning design, engineering, commercial and delivery teams from pre‑construction, with collective ownership from ground to structure. UrbanCore is targeting constrained city‑centre sites with tight access, sensitive neighbouring assets and complex sequencing, aiming to reduce interface clashes, programme slippage and cost uncertainty.
Technical Brief
- UrbanCore explicitly targets constrained access, adjacent sensitive assets and complex sequencing as primary design constraints.
- Delivery model is structured to remove traditional subcontract interfaces between groundworks, basement box and frame packages.
- Early alignment covers design, engineering, commercial and site delivery teams rather than only construction phase coordination.
- Collective ownership of ground and structure is intended to centralise responsibility for ground risk allocation and mitigation.
- Programme risk is tackled by integrating temporary works, excavation, piling and frame sequencing within one planning envelope.
- Cost control is framed around a single integrated package, reducing re‑pricing and change at package boundaries.
- For dense city‑centre basements, the model is geared to improve buildability where ground movements and neighbour impacts dominate.
Our Take
Kilnbridge’s recent £19M Bridgewater Road Bridge delivery in London and its rebound to £129m revenue and £6.7m pre-tax profit suggest it now has the balance sheet and complex-project track record to be a credible long-term partner for Bachy Soletanche on UK ground engineering packages.
In our infrastructure coverage for the United Kingdom, Kilnbridge appears more frequently on urban regeneration and transport-linked schemes, so teaming with Bachy Soletanche and UrbanCore likely positions the group to capture early-stage enabling works on dense city projects where temporary works, logistics and deep foundations are tightly coupled.
Bachy Soletanche’s specialism in geotechnical works combined with Kilnbridge’s recent success on technically complex structures indicates this partnership is well placed for design-and-build or early contractor involvement models that UK public and private clients are increasingly using on constrained brownfield sites.
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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