Tender

Strategic Design Partner to Support Deconversion Framework

UNITED KINGDOM NATIONAL NUCLEAR LABORATORY

This public procurement record has 2 releases in its history.

Tender

07 Nov 2025 at 15:16

Planning

24 Oct 2025 at 08:42

Summary of the contracting process

The United Kingdom National Nuclear Laboratory (UKNNL), situated in Warrington, is actively progressing with its tender process titled "Strategic Design Partner to Support Deconversion Framework". This initiative falls under the engineering design services category, targeting regions within the UK. The procurement is in the tender stage as of 7th November 2025, following preliminary planning stages that engaged the market. UKNNL is employing a competitive flexible procedure, with key deadlines for submissions on 28th November 2025 and 16th January 2026. The framework agreement, worth an estimated gross amount of £4.2 million, will commence on 16th March 2026 and will span four years, facilitated through NEC contracts.

This tender offers substantial business opportunities, particularly for companies specialising in engineering design services. The framework seeks a strategic design partner capable of supporting multiple stages of design, from preliminary to detailed, with potential for additional deconversion-related design support. SMEs are notably encouraged to participate, as UKNNL considers them suitable and competitive candidates for this contract. Engaging in this tender allows businesses to establish a long-term collaborative partnership with a significant public authority, potentially enhancing their growth and portfolio in the nuclear sector.

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Notice Title

Strategic Design Partner to Support Deconversion Framework

Notice Description

The Strategic Design Partner (SDP) Framework is intended to comprise of four stages, these are: Stage 1: Defining Period Stage 2: Preliminary Design Stage 3: Detailed Design Stage 4: Design Support During Manufacture UKNNL will enter into a new call-off for each stage of work, UKNNL reserves the right to not award future call-offs to the framework appointed supplier. UKNNL will continually assess Key Performance Indicators to inform decision making surrounding future call-offs. This notice is to shortlist suppliers under stage 1 - the deadlines for each stage are: Stage 1: Deadline 28th November 2025 at 13:00hrs Stage 2: w/c 8th December 2025 Stage 3: Deadline 16th January 2026 at 13:00hrs Stage 4: Optional, dates as per ITT

Planning Information

UKNNL will be hosting a Market Engagement Session on MS Teams on Thursday 6th November from 11:00-12:00. Suppliers can sign-up to attend this market engagement/briefing session by emailing Emma.Kirkpatrick@uknnl.com and Sarah.Walton@uknnl.com confirming the names and email addresses of attendees. To engage with UKNNL suppliers must: 1. Sign-up to the engagement session 2. Attend the session 3. Provide feedback/ ask questions UKNNL wishes to confirm appetite in the market for this contract and ensure the contracting model is attractive to potential suppliers. If you would like to pre submit questions ahead of the call please email these to Emma.kirkpatrick@uknnl.com and Sarah.walton@uknnl.com . We plan to share the attendees list of the call with all attendees. If you do not wish for your details to be shared, please notify us when registering and we will remove your information from the list before distributing.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05d301
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/072122-2025
Current Stage
Tender
All Stages
Planning, Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Framework
Procurement Category
Services
Procurement Method
Open
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

71 - Architectural, construction, engineering and inspection services


CPV Codes

71320000 - Engineering design services

Notice Value(s)

Tender Value
£3,500,000 £1M-£10M
Lots Value
£3,500,000 £1M-£10M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
7 Nov 20253 months ago
Submission Deadline
16 Jan 2026Expired
Future Notice Date
7 Nov 2025Expired
Award Date
Not specified
Contract Period
16 Mar 2026 - 15 Mar 2030 4-5 years
Recurrence
Not specified

Notice Status

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

Contracting Authority (Buyer)

Main Buyer
UNITED KINGDOM NATIONAL NUCLEAR LABORATORY
Contact Name
Emma Kirkpatrick
Contact Email
emma.kirkpatrick@uknnl.com
Contact Phone
+44 1925933744

Buyer Location

Locality
WARRINGTON
Postcode
WA3 6AE
Post Town
Warrington
Country
England

Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
TLD North West (England), TLD45 Mid Lancashire

Local Authority
Warrington
Electoral Ward
Birchwood
Westminster Constituency
Warrington North

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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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.

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