---
title: "Southern Track and Rail Systems Phase 3"
ocid: "ocds-h6vhtk-06fa3f"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06fa3f"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06fa3f.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06fa3f.json"
source: "Find A Tender Service"
current_stage: "Planning"
buyer: "Thameslink Southern Great Northern Limited (TSGN)"
published: "2026-09-15"
---

# Southern Track and Rail Systems Phase 3

Buyer: Thameslink Southern Great Northern Limited (TSGN)  
Current stage: Planning  
OCID: ocds-h6vhtk-06fa3f

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## Summary

Thameslink Southern Great Northern Limited (TSGN) intends to procure railway infrastructure renewal works under the Southern Track and Rail Systems Phase 3 programme. The scope covers critical junction and plain-line renewals, together with signalling cable replacement, at seven depots: Brighton Heavy Maintenance Depot, Selhurst Heavy Maintenance Depot, Streatham Hill Light Maintenance Depot, Eastbourne Light Maintenance Depot, Letchworth City Light Maintenance Depot, Littlehampton Light Maintenance Depot and Horsham Light Maintenance Depot. The work is classified as construction, with related requirements for railway track construction and maintenance, railway signalling, electrical installation, cable infrastructure and signalling equipment. It is intended to address physical rail assets and associated signalling systems across TSGN’s depot network in England.

This procurement is at the planning stage: TSGN has stated its intention to buy the works, but this record is not an invitation to tender. The buyer expects to use an open competitive flexible procedure, with a pre-qualification questionnaire through RISQS followed by a single-stage invitation to tender. The estimated value is £18,000,000 excluding VAT (£21,600,000 including VAT). TSGN’s indicative expectation is for enquiries to close on 25 September 2026 at 5pm, a further notice to be published by 12 October 2026, tender submissions to close on 20 November 2026 at 5pm, and the award decision period to end on 11 January 2027. The planned contract period is 1 March 2027 to 31 March 2031. Evaluation is weighted 40% price and 60% quality.

The planned work is likely to suit railway infrastructure contractors, track renewal specialists, signalling contractors and electrical or cable installation firms with the capacity to deliver across multiple depots. Relevant capability includes critical junction and plain-line renewal, track construction or maintenance, rail asset replacement, signalling systems, signalling cable installation and associated electrical works. Suppliers should prepare for participation through RISQS, as the planned procedure includes a pre-qualification questionnaire using that system. The requirement may also suit established rail engineering groups able to coordinate work at heavy and light maintenance depots, manage several work fronts and demonstrate strong technical and quality performance. Firms with specialist signalling, track or cable expertise may consider partnership or subcontracting arrangements when the procurement reaches the market.

## Notice

The purpose of the Procurement is to select a supplier or suppliers to deliver the Critical Junction/Plain Line Renewals and Signalling Cable replacement at various Depots. Assets to be addressed are at the following locations: Brighton Heavy Maintenance Depot Selhurst Heavy Maintenance Depot Streatham Hill Light Maintenance Depot Eastbourne Light Maintenance Depot Letchworth City Light Maintenance Depot Littlehampton Light Maintenance Depot Horsham Light Maintenance Depot For more information about this opportunity, please visit the eSourcing portal at: https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Electricity-power-lines./TV485Z8376 To respond to this opportunity, please click here: https://gtr.delta-esourcing.com/respond/TV485Z8376

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/087356-2026 |
| Notice type | UK3 - Planned Procurement Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Competitive flexible procedure |
| Tender suitability | Not specified |
| Awardee scale | Not specified |
| All stages | Planning |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 15 Sep 2026 |
| Submission deadline | Not specified |
| Future notice date | 12 Oct 2026 |
| Award date | Not specified |
| Contract period | 1 Mar 2027 - 31 Mar 2031 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £18,000,000 |
| Lots value | £18,000,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Planned |
| Lots status | Planned |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | Thameslink Southern Great Northern Limited (TSGN) |
| Locality | LONDON |
| Postcode area | Central London |
| Postcode | EC3R 8AJ |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | City of London |
| Electoral ward | Bridge |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 34 - Transport equipment and auxiliary products to transportation
- 45 - Construction work
- 50 - Repair and maintenance services

### Codes

- 31321000 - Electricity power lines
- 34942000 - Signalling equipment
- 45230000 - Construction work for pipelines, communication and power lines, for highways, roads, airfields and railways; flatwork
- 45234100 - Railway construction works
- 45234113 - Demolition of tracks
- 45234114 - Railway embankment construction work
- 45234115 - Railway signalling works
- 45234116 - Track construction works
- 45310000 - Electrical installation work
- 45314300 - Installation of cable infrastructure
- 45314310 - Installation of cable laying
- 45316000 - Installation work of illumination and signalling systems
- 45316200 - Installation of signalling equipment
- 50220000 - Repair, maintenance and associated services related to railways and other equipment
- 50225000 - Railway-track maintenance services

## Release History

- 15 Sep 2026 at 14:29 - Planning - UK3 - Planned Procurement Notice - https://www.find-tender.service.gov.uk/Notice/087356-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/087356-2026
  15th September 2026 - Planned procurement notice on Find a Tender

## Notice URLs

- https://gtr.delta-esourcing.com/respond/TV485Z8376
- https://gtr.delta-esourcing.com/tenders/UK-UK-London:-Electricity-power-lines./TV485Z8376
- https://www.find-tender.service.gov.uk/api/1.0/ocdsReleasePackages/ocds-h6vhtk-04e7db
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06fa3f. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06fa3f.json.