Engineering the Future of Rail Infrastructure
Rail Infrastructure | Station Development | Transport Consultancy
An independent British consultancy trusted by ministries, railway authorities, and infrastructure clients across 18 countries.
London's premier independent rail consultancy
Founded in 1990 by British Rail engineers, LSP combines the breadth of a large multidisciplinary firm with the agility of a specialist practice.
From our Westminster base — minutes from the Department for Transport and Network Rail — our 200-strong team of structural engineers, architects, transport planners, and digital specialists advises on some of the most complex rail projects in the UK and internationally.
A complete rail consultancy offering
Strategic input at the outset of a programme, specialist technical expertise at design and construction, and independent assurance through operations.
Rail Infrastructure Consultancy
Strategic advisory and technical guidance across the full rail asset lifecycle, from options appraisal to operational performance.
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Station Design & Masterplanning
From concept architecture to detailed design for passenger interchanges of every scale.
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Track & Upper Structure Engineering
Specialist expertise in track geometry, formation, bridges, viaducts, and canopy structures.
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Project Management & Delivery
End-to-end programme management for complex, multi-stakeholder rail investments.
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Asset Management & Maintenance
Condition assessment, lifecycle planning, and maintenance strategy for rail infrastructure.
Learn MoreSafety, Standards & Compliance
Assurance, safety cases, ROGS compliance, and independent verification services.
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Digital Rail & Innovation
BIM, digital twins, data analytics, and smart-station technology integration.
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Sustainability & Green Rail
Decarbonisation strategies, energy-efficiency assessments, and environmental planning.
Learn MoreA portfolio built on proven delivery
£1.2bnHS2 Old Oak Common Station
Specialist upper-structure advisory for the UK's largest new underground interchange station, including technical review of the station-box design, permanent-way interfaces, and canopy structural systems across eight platforms.
£570mLondon Bridge Station Redevelopment
Lead structural consultants for the phased redevelopment of London Bridge — among the most complex live-station engineering projects in modern British rail. Delivered structural design for the new concourse, platform canopies, and OLE transition while maintaining full passenger throughput.
£280mRiyadh Metro — Stations 1–10
Full architectural and structural engineering for ten metro stations across Riyadh's Blue Line, including distinctive canopies, subterranean platforms, and passive-cooling systems integrated within structural schemes for an extreme climate.
Safety, sustainability and digital — in every project
Safety First
An independent assurance practice led by professionals from operational railway backgrounds — ROGS, CDM 2015, and structural safety cases.
Green Rail
Net-zero project outputs by 2040, with embodied-carbon analysis embedded into every structural design decision.
Digital Rail
BIM Level 2/3, digital twins, and AI-assisted structural health monitoring across the asset lifecycle.
Independence
No commercial ties to contractors or suppliers — our advice is driven solely by your project's best interest.
Let's discuss your rail programme
Whether you are shaping a national strategy or delivering a single interchange, our team is ready to help. Tell us about your challenge.