Fixed Gantry at Selhurst Depot

Kim Frater, founder of Bid Trawler
Written by Kim Frater
Former Public Sector Buyer • Founder of Bid Trawler • 40+ years' public sector experience
"I believe public procurement shouldn't be complicated. Every guide I write explains the process in plain English so you can bid with confidence."

2 minute read  •  Updated September 2026

A practical guide to understanding what the buyer really wants and how to build a winning response.

Think about the flexibility they're asking for

Yes, this is about installing a gantry.

But it’s not just any gantry.

Thameslink Southern Great Northern Limited wants something adaptable.

They're clear: the gantry must accommodate future changes in rolling stock without needing significant works.

This isn't just about current needs.

It's about future-proofing.

If I were writing this tender, I’d emphasise my approach to flexible design.

Consider the challenges of the site

Fixed in place and running 250 metres along the maintenance road.

That's no small task.

The location is London, at the Selhurst Depot.

A busy railway environment with its own challenges.

Think about the logistics.

Your response should show you understand the site specifics.

Don't underestimate the importance of safety

This isn't just about building a structure.

It's about ensuring safe access for maintenance teams.

Walking roof access, full-length vehicle access and retractable archways for fall protection.

Safety standards matter.

I'd focus on how my design meets or exceeds these requirements.

Evidence always beats promises

One thing I noticed when I worked in the public sector was that almost every bidder claimed to deliver high-quality work.

Very few proved it.

If you have evidence of similar projects, use it.

Show how you've successfully delivered in a railway environment before.

  • Detailed project plans
  • Safety records
  • Client testimonials
  • Examples of flexible design solutions

Pay attention to what they say

They’ve set clear priorities.

Network Rail standards and specifications.

This isn't negotiable.

Your response needs to reflect your understanding of these standards.

And how you’ll meet them.

Consider the entire lifecycle of the gantry

From design to assurance.

This contract covers everything.

Design, manufacture, installation, testing, commissioning and assurance.

I'd want to see how you plan to manage each stage.

And how you'll ensure quality throughout.

How will you manage the operational impact?

Railway maintenance can’t stop.

Your plan should minimise disruption to depot operations.

Think about phasing.

Communication with depot staff.

And how you’ll manage access during construction.

Remember who you're trying to convince

You're not just talking to procurement officers.

You're addressing engineers and depot managers who need to know your gantry won't disrupt their work.

Keep that in mind.

Common mistakes

Avoid submissions that:

  • Ignore the requirement for future-proofing the gantry design
  • Overlook the need for compliance with Network Rail standards
  • Fail to provide evidence of similar projects or safety records
  • Miss out on demonstrating a clear understanding of the site challenges
  • Neglect to detail how construction will minimise operational impact
  • Provide vague answers without specific examples or plans

My Final Thoughts

What Thameslink Southern Great Northern Limited is really looking for is reassurance.

A dependable partner who can deliver a flexible, safe and compliant gantry.

The contract value of £1,800,000 and the timeline from May 2027 to March 2028 show they’re serious about this.

Your written submission matters.

Emphasise quality, as that's what they'll weigh heavily in their decision.

Thanks for reading.

I hope this guide has helped make public procurement feel a little less daunting. If it has, then it's done its job.

Kim
Founder, Bid Trawler

P.S. Got a question?

If you've got a question about anything you've read, or you're stuck on a tender, just send me an email.

Whether it's a quick question or you simply need pointing in the right direction, I'm always happy to help if I can.

kim@bidtrawler.com

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About our "How to Win This Contract" guides

Our guides are written using publicly available procurement information, including contract notices and published tender documents where available. They are designed to help suppliers understand the buyer's likely priorities and think more strategically about their approach. They are not based on any bidder's confidential submission, bespoke bid strategy or non-public procurement information.

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