Tender

Central Substation RIBA4 & Build

KBS MARITIME LTD

This public procurement record has 1 release in its history.

Tender

25 Feb 2026 at 11:00

Tender Notice
Summary of the contracting process

KBS Maritime Ltd is soliciting tenders for the "Central Substation RIBA4 & Build" project under the construction industry category, primarily taking place in and around Portsmouth, United Kingdom. The procurement process follows a selective method under a restricted procedure, currently in the tender stage with publication dated 25th February 2026. This project covers extensive site preparation, complete construction, and building installation work, classified under CPV codes 45000000, 45100000, 45200000, and 45300000. Prospective bidders should be aware that the tender period concludes on 27th March 2026, with the contract set to commence on 28th March 2026. This undertaking involves both design and build phases, specifically focusing on the RIBA stage 3 designs evolving into stage 4 and subsequently constructing and commissioning the new Central Substation building.

This procurement presents significant opportunities for businesses specialising in construction work, site preparation, and building installation, particularly those that can deliver comprehensive technical design and thorough build execution. The project, valued at £1,300,000 GBP, is especially suitable for small and medium-sized enterprises (SMEs), as the procurement suitability underscores. Businesses within the British Overseas Territories, Channel Islands, Isle of Man, and throughout the United Kingdom and Europe could benefit significantly from participating. This tender provides a chance for growth, especially for firms capable of managing complex, phased projects with expertise in HV/LV electrical installations and having an understanding of building commissioning processes. Interested parties should consider how their capabilities align with the project's requirements to maximise business growth prospects.

Find more tenders on our Open Data Platform.
How relevant is this notice?

D3 Tenders Premium

Win More Public Sector Contracts

AI-powered tender discovery, pipeline management, and market intelligence — everything you need to grow your public sector business.

Start Free Trial Book a Demo
All Features Pricing

Notice Information

Notice Title

Central Substation RIBA4 & Build

Notice 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.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-6273252d-96a7-413c-ad97-3ea3cf17323b
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/3001bab6-7d96-4385-bc96-45eda0d78114
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Selective
Procurement Method Details
Restricted procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

45 - Construction work

CPV Codes

45000000 - Construction work

45100000 - Site preparation work

45200000 - Works for complete or part construction and civil engineering work

45300000 - Building installation work

Notice Value(s)

Tender Value
£1,300,000 £1M-£10M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
25 Feb 20264 days ago
Submission Deadline
27 Mar 20264 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
28 Mar 2026 - 29 Mar 2026 30 days
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Not Specified
Awards Status
Not Specified
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
KBS MARITIME LTD
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
PORTSMOUTH
Postcode
PO1 3LS
Post Town
Portsmouth
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ3 Hampshire and Isle of Wight
Small Region (ITL 3)
TLJ31 Portsmouth
Delivery Location
Not specified
Local Authority
Portsmouth
Electoral Ward
Charles Dickens
Westminster Constituency
Portsmouth South

Further Information

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

Download

The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts. 

{
    "tag": [
        "compiled"
    ],
    "id": "ocds-b5fd17-6273252d-96a7-413c-ad97-3ea3cf17323b-2026-02-25T11:00:28Z",
    "date": "2026-02-25T11:00:28Z",
    "ocid": "ocds-b5fd17-6273252d-96a7-413c-ad97-3ea3cf17323b",
    "language": "en",
    "initiationType": "tender",
    "tender": {
        "id": "20260225110022-153032",
        "title": "Central Substation RIBA4 & Build",
        "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.",
        "datePublished": "2026-02-25T11:00:28Z",
        "status": "active",
        "classification": {
            "scheme": "CPV",
            "id": "45000000",
            "description": "Construction work"
        },
        "additionalClassifications": [
            {
                "id": "45100000",
                "scheme": "CPV",
                "description": "Site preparation work"
            },
            {
                "id": "45200000",
                "scheme": "CPV",
                "description": "Works for complete or part construction and civil engineering work"
            },
            {
                "id": "45300000",
                "scheme": "CPV",
                "description": "Building installation work"
            }
        ],
        "items": [
            {
                "id": "1",
                "deliveryAddresses": [
                    {
                        "postalCode": "PO1 3LS"
                    },
                    {
                        "countryName": "British Oversea Territories"
                    },
                    {
                        "countryName": "Channel Islands"
                    },
                    {
                        "countryName": "Europe"
                    },
                    {
                        "countryName": "Isle of Man"
                    },
                    {
                        "countryName": "Rest of the World"
                    },
                    {
                        "countryName": "United Kingdom"
                    }
                ]
            }
        ],
        "value": {
            "amount": 1300000,
            "currency": "GBP"
        },
        "procurementMethod": "selective",
        "procurementMethodDetails": "Restricted procedure",
        "tenderPeriod": {
            "endDate": "2026-03-27T15:00:00Z"
        },
        "contractPeriod": {
            "startDate": "2026-03-28T00:00:00Z",
            "endDate": "2026-03-29T23:59:59+01:00"
        },
        "suitability": {
            "sme": true,
            "vcse": false
        },
        "mainProcurementCategory": "works",
        "documents": [
            {
                "id": "1",
                "documentType": "tenderNotice",
                "description": "Opportunity notice on Contracts Finder",
                "url": "https://www.contractsfinder.service.gov.uk/Notice/3001bab6-7d96-4385-bc96-45eda0d78114",
                "datePublished": "2026-02-25T11:00:28Z",
                "format": "text/html",
                "language": "en"
            },
            {
                "id": "2",
                "description": "Additional data",
                "url": "https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=103172&B=KBS"
            },
            {
                "id": "3",
                "description": "User / Company",
                "url": "https://uk.eu-supply.com/ctm/Company/CompanyInformation/Index/153032"
            }
        ]
    },
    "parties": [
        {
            "id": "GB-CFS-284339",
            "name": "KBS Maritime Ltd",
            "identifier": {
                "legalName": "KBS Maritime Ltd"
            },
            "address": {
                "streetAddress": "Victory Building, Room 233, The Parade, HM Naval Base",
                "locality": "Portsmouth",
                "postalCode": "PO1 3LS",
                "countryName": "ENG"
            },
            "contactPoint": {
                "name": "Abi Millyard",
                "email": "scsystems@kbsmaritime.com"
            },
            "roles": [
                "buyer"
            ]
        }
    ],
    "buyer": {
        "id": "GB-CFS-284339",
        "name": "KBS Maritime Ltd"
    }
}