---
title: "Legal Services for Sizewell C"
ocid: "ocds-h6vhtk-04b189"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04b189"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-04b189.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-04b189.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "DEPARTMENT FOR ENERGY SECURITY AND NET ZERO"
published: "2025-07-31"
---

# Legal Services for Sizewell C

Buyer: DEPARTMENT FOR ENERGY SECURITY AND NET ZERO  
Current stage: Award  
OCID: ocds-h6vhtk-04b189

[View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-04b189)  
[Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-04b189.json)

## Summary

The Department for Energy Security and Net Zero (DESNZ) is overseeing the procurement of legal services for the Sizewell C Project, a large-scale energy initiative in the UK. The current stage involves modifications to an existing contract with Linklaters LLP, with extensions granted due to extended project timelines. The original contract commenced on 1 December 2023 and was initially set to conclude on 30 September 2024. However, subsequent modifications have extended the contract until 31 March 2026, increasing the total contract value to £31,920,000. The procurement falls under the services industry category, specifically focusing on legal services, and operates within the UK jurisdiction. Regulation adjustments under the Public Contracts Regulations 2015 have facilitated these modifications.

This tender represents significant opportunities for businesses specialising in legal advisory services, particularly those with expertise in large infrastructure projects and experience in dealing with complex regulatory environments, such as nuclear energy developments. Companies capable of providing nuanced legal consultation, given the multifaceted nature of the Sizewell C Project and its evolving timelines, have the potential to secure lucrative business growth. While the current supplier, Linklaters LLP, has a large presence, the ongoing nature of such extensive projects may necessitate the involvement of additional sub-contractors or partners, making this an attractive venture for other legal advisory firms looking to expand their footprint in the energy sector.

### Lot Information

Legal Services for the Sizewell C Project

This is a modification to an existing contract between the Department for Energy Security and Net Zero and Linklaters LLP. The scope of the contract is for the provision of legal services regarding legal and commercial matters concerning the Sizewell C project, as well as the role of DESNZ as project sponsor and shareholder. Additional services have become necessary due to extended project timelines. The supplier's services are essential to the achievement of the SZC Final Investment Decision and progression of the programme. The variation is composed of an eight-month extension in time and a 50% extension in value under Regulation 72 (1) (b) and 72 (2) of the Public Contracts Regulations 2015. Original award value: PS15,960,000 (excl. VAT). 01/12/2023-30/09/2024. Modification one (Sep-24): PS7,980,000 (excl. VAT). 01/12/2023-31/07/2025. Modified contract value: PS23,940,000. Modification two (Jul-25): PS7,980,000 (exlc. VAT). 01/12/2023-31/03/2026. Modified contract value: PS31,920,000.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/044579-2025 |
| Notice type | Award Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Not Specified |
| Procurement method details | Not specified |
| Tender suitability | Not specified |
| Awardee scale | Large |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 31 Jul 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 1 Dec 2023 |
| Contract period | 1 Dec 2023 - 31 Mar 2026 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | Not specified |
| Contracts value | £55,860,000 |

## Status

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

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | DEPARTMENT FOR ENERGY SECURITY AND NET ZERO |
| Additional buyers | THE DEPARTMENT FOR ENERGY SECURITY AND NET ZERO |
| Locality | LONDON |
| Post town | South West London |
| Postcode | SW1A 2EG |
| Country | England |
| ITL 1 | TLI London |
| ITL 2 | TLI3 Inner London - West |
| ITL 3 | TLI35 Westminster and City of London |
| Local authority | Westminster |
| Electoral ward | St James's |
| Westminster constituency | Cities of London and Westminster |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | LINKLATERS |

## CPV Codes

### Divisions

- 79 - Business services: law, marketing, consulting, recruitment, printing and security

### Codes

- 79100000 - Legal services
- 79111000 - Legal advisory services

## Release History

- 31 Jul 2025 at 08:42 - AwardUpdate - Award Notice - https://www.find-tender.service.gov.uk/Notice/044579-2025
- 25 Oct 2024 at 14:55 - AwardUpdate - Award Notice - https://www.find-tender.service.gov.uk/Notice/034732-2024

## Notice URLs

- https://www.gov.uk/government/organisations/department-for-energy-security-and-net-zero

## 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-04b189. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-04b189.json.