# SUPPLY CHAIN NOTICE - Central Substation RIBA4 & Build

> Pre-procurement notice from UK public-sector procurement sources.

## Key facts

- Public buyer: [Ministry of Defence](/buyers/ministry-of-defence/contract-awards)
- Tender value: £1,300,000
- Published: 19 March 2026
- Planned start: 1 July 2026
- Planned end: 1 July 2027
- Stage: pre_procurement
- Notice ID: 550e2499-b437-4f0b-8773-b1f3cf975927-889278
- OCID: ocds-b5fd17-14189b2f-a65e-4cbd-84d2-05676a0751ca

## Description

The overarching requirement of the project is to develop the RIBA Stage 3 Design into a complete RIBA Stage 4 Technical Design and subsequently build and commission the new Central Substation building \(through RIBA Stage 5 and 6\)\. This project is split into two principal Phases as outlined below - a Design Phase \(1\) and a Build Phase \(2\), each with their own corresponding Work Packages\. In summary, this Project includes the following work packages: Project Phase 1 \(Design\) includes the following work packages: - WP 1: Survey and assessment work to facilitate the RIBA 4 design\. - WP 2: RIBA 4 Technical Design incl\. all temporary works designs\. - WP 3: Undertake earthing design for Central Substation\. Project Phase 2 \(Build\) includes the following work package: - WP 4: RIBA 5 and 6: Construct, Commission and Handover the works as designed in Phase 1\. Installation of HV/LV Electrical switch panels and associated cabling shall not form part of this work, and will follow as a separate project once WP 4 is complete\. Those that meet the criteria of this initial phase will be invited to participate in a final competition\. Deadlines for expressions of interest are the 27th March\. Any expressions received after this date will not be accepted\.

## Related contract awards

- [EITSD Legal Support Contract Award Notice](/contracts/ocds-b5fd17-91508ab7-4066-4017-801c-af8e44967069): Ministry of Defence
- [Tactical Hearing Protection System Specialist User \(THPS SU\) Attrition Stock](/contracts/ocds-b5fd17-9c49a0f6-8207-4d1e-a3b8-3ce1211a447e): MINISTRY OF DEFENCE
- [705925450 - Soldier System Contract Call Offs for September 2026](/contracts/ocds-b5fd17-43e4c8f4-34bd-4e58-93a4-232c10220ee4): MINISTRY OF DEFENCE

## Source

[View the original notice on Contracts Finder](https://www.contractsfinder.service.gov.uk/Notice/550e2499-b437-4f0b-8773-b1f3cf975927-889278)