Balfour Beatty’s £65M Edinburgh Airport expansion: phasing and ground-risk notes for engineers
Reviewed by Joe Ashwell
First reported on New Civil Engineer
30 Second Briefing
Balfour Beatty is advancing the £65M South East Pier Expansion (Sepex) at Edinburgh Airport, a landside–airside interface project expected to increase stand capacity and passenger processing space. The scheme will extend the existing pier structure to serve additional aircraft gates, requiring new foundations, service diversions and airfield pavement works within a live operational environment. For civil and geotechnical teams, key challenges will centre on phasing construction around runway and taxiway operations, managing ground risk adjacent to existing assets, and integrating new M&E and baggage systems into constrained terminal infrastructure.
Technical Brief
- Contract value confirmed at £65M, placing Sepex in the medium-scale UK aviation capex bracket.
Our Take
In our database of 901 Infrastructure stories, Balfour Beatty appears frequently in UK transport and municipal work, with the £120M Leeds Inner Ring Road Strategy contract and the £24M Eastern Transfer Station showing it is consistently winning medium-to-large public realm and transport-linked schemes alongside this Edinburgh Airport South East Pier Expansion.
The push for early contractor involvement by Balfour Beatty’s regional civils leadership, noted in an August 2026 piece, suggests the Sepex pier expansion is likely to be used as another reference project for collaborative delivery models on complex, operational-asset upgrades such as airports.
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.
