---
title: "ITT - Fort Cumberland - Electrical Infrastructure upgrade (UID 150)"
ocid: "ocds-h6vhtk-05ea8e"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05ea8e"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05ea8e.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05ea8e.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "HISTORIC ENGLAND"
published: "2026-02-06"
---

# ITT - Fort Cumberland - Electrical Infrastructure upgrade (UID 150)

Buyer: HISTORIC ENGLAND  
Current stage: Award  
OCID: ocds-h6vhtk-05ea8e

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## Summary

Historic England has awarded a contract for the "ITT - Fort Cumberland - Electrical Infrastructure upgrade (UID 150)" project, located in Portsmouth, UK. The process, concluding on 6th February 2026, involved an open competition method below the threshold, suitable for public authority sub-central government organisations. The procurement phase concluded with the contract, tagged as active, covering upgrades and replacements in electrical infrastructure at Fort Cumberland, a scheduled monument. The contract's execution runs from 9th February 2026 to 31st May 2026, valued at approximately £690,090.68 gross. T Coleborn & Sons, based in Portsmouth, is the awarded supplier.

This project presents significant opportunities for businesses in the electrical installation industry, particularly those specialising in infrastructure upgrades and capable of handling historical site considerations. The tender was specifically open to applicants through an electronic procurement portal, focusing on a most advantageous tender evaluation, prioritising quality at 65% and price at 35%. SMEs like T Coleborn & Sons were deemed suitable for this competition, providing growth potential for companies with capabilities in electrical infrastructure works, especially in heritage contexts.

## Notice

The upgrade and replacement of the existing electrical infrastructure at Fort Cumberland, Portsmouth, which is a scheduled monument. The work is to include the upgrade of the main distribution board located in the site's substation, various other distribution boards around the site and the trenching and replacement of the existing underground cabling that supplies each board, plus addition minor works of clipping existing cabling to structures and the removal of a small wind turbine system that is now obsolete.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/011160-2026 |
| Notice type | UK7 - Contract Details Notice |
| Procurement type | Standard |
| Procurement category | Works |
| Procurement method | Open |
| Procurement method details | Below threshold - open competition |
| Tender suitability | Not specified |
| Awardee scale | SME |
| All stages | Tender, Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 6 Feb 2026 |
| Submission deadline | 22 Dec 2025 |
| Future notice date | Not specified |
| Award date | 2 Feb 2026 |
| Contract period | 9 Feb 2026 - 31 May 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £500,000 |
| Lots value | £500,000 |
| Awards value | Not specified |
| Contracts value | £575,075 |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Active |
| Contracts status | Active |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | HISTORIC ENGLAND |
| Locality | SWINDON |
| Post town | Swindon |
| Postcode | SN2 2EH |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK7 Gloucestershire and Wiltshire |
| ITL 3 | TLK71 Swindon |
| Local authority | Swindon |
| Electoral ward | Mannington and Western |
| Westminster constituency | Swindon South |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | T COLEBORN & SONS |

## CPV Codes

### Divisions

- 45 - Construction work

### Codes

- 45310000 - Electrical installation work

## Release History

- 6 Feb 2026 at 16:58 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/011160-2026
- 27 Nov 2025 at 16:57 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/077862-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/011160-2026
  6th February 2026 - Contract details notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/077862-2025
  27th November 2025 - Tender notice on Find a Tender

## Notice URLs

- http://www.historicengland.org.uk
- http://www.tcolebornbuilders.co.uk
- https://in-tendhost.co.uk/historicengland/aspx/Home
- 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-05ea8e. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05ea8e.json.