Southern Rail starts hunt for £4.3bn civils partner

Network Rail’s southern regional has started tendering the first package for a new 10-year-plus partnership with a firm to deliver building and civils renewals on the network.

The region is hoping for step change in the way renewals are delivered on its network, making the most of modern methods of working and technology, collaboration and relationship focused contracting.

The fresh delivery approach will involve a switch to integrated and collaborative Project 13 principals of delivery for an estimated work programme of £4.5bn to £9bn over Control Period 7 and 8.

Its new Southern Integrated Delivery model will be used to deliver all categories of railway asset work including: signalling & telecoms, track, buildings & civils, electrification and plant and minor works.

Of the total spending estimate, buildings and civils will constitute 30% – 45%, track 15% – 25%, signalling & telecoms 5% – 15%, electrification and plant 5% -10% while minor works will constitute 20%- 30% of the overall estimated value.

These works will be undertaken on Kent, Sussex and Wessex routes, and will primarily be focussed on the delivery of the renewals portfolio, however options will be included to enable enhancements also to be delivered, subject to capacity and where the SID is considered the optimum procurement route.

The establishment of the SID will be undertaken in tranches, the initial invitation to tender is for the procurement of two lots: a Buildings & Civils partner; and an Electrification & Plant Business partner.

SID procurement plan

Lot 1: Buildings & Civils – value up to £4.3bn

Lot 2 – Electrification & Plant – value £1bn

Initial returns – 6 December 2021

Three shortlisted bidders inited to bid – 14 March 2022



Each appointed business partner will initially sign into a development phase agreement, scheduled from December 2022 – April 2024.

The main SID agreement will be 10 years in duration (April 2024 – March 2034) and will commence in Control Period 7 (CP7) with the inclusion of a break clause prior to the commencement of CP8.

Procurement documents are available for unrestricted and full direct access, free of charge, here:

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