--- title: "Strategic Design Partner to Support Deconversion - Framework Agreement" ocid: "ocds-h6vhtk-05d301" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d301" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d301.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d301.json" source: "Find A Tender Service" current_stage: "Award" buyer: "UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED" published: "2026-03-25" --- # Strategic Design Partner to Support Deconversion - Framework Agreement Buyer: UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED Current stage: Award OCID: ocds-h6vhtk-05d301 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d301) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-05d301.json) ## Summary The procurement process for a Strategic Design Partner to support High Assay Low Enriched Uranium (HALEU) Deconversion has been initiated by the United Kingdom National Nuclear Laboratory Limited (UKNNL), a public authority operating as part of the sub-central government. Located in Warrington, UKNNL is seeking to establish a closed framework agreement with a single supplier. The procurement follows a structured methodology beginning with planning and progressing through tender and award stages. Awarding North West Projects Ltd, operating as Actemium Design UK, the contract, the framework involves four distinct stages covering design and support tasks. The procurement stage is complete as of March 2026, with the total contract value reaching £3,500,000, scheduled to span from March 2026 to March 2030. The completed award notice was published on 25th March 2026. This comprises services in the engineering design domain, primarily targeted in the UK regions of Warrington and Chorley. This tender presents substantial opportunities for firms within the engineering design sector to engage in an extensive collaborative project with the UKNNL. It is designed for businesses capable of providing comprehensive design services, including preliminary to detailed design support during manufacturing. The procurement method utilised a competitive flexible procedure under a closed framework agreement, allowing for a direct award to a proficient supplier with demonstrated expertise. Large companies with a focus on nuclear engineering design and those capable of meeting high regulatory compliance in safety and technical standards should find this partnership beneficial for business growth. The project also opens pathways for engaging in future call-offs, contingent on the supplier's performance, providing an ongoing opportunity for industry players capable of sustaining high service delivery standards. ## Notice This Contract Award Notice confirms the appointment by UKNNL of a single supplier framework agreement to undertake the role of "Strategic Design Partner" to support UKNNL with HALEU Deconversion. 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 and to amend the call-off schedule for alternative HALEU Deconversion related design work. UKNNL will continually assess Key Performance Indicators to inform decision making surrounding future call-offs. ### 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. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/027524-2026 | | Notice type | UK7 - Contract Details Notice | | Procurement type | Framework | | Procurement category | Services | | Procurement method | Selective | | Procurement method details | Competitive flexible procedure | | Tender suitability | SME | | Awardee scale | Large | | All stages | Planning, Tender, Award | ## Dates | Field | Value | | --- | --- | | Publication date | 25 Mar 2026 | | Submission deadline | 16 Jan 2026 | | Future notice date | 7 Nov 2025 | | Award date | 27 Feb 2026 | | Contract period | 16 Mar 2026 - 15 Mar 2030 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £3,500,000 | | Lots value | £3,500,000 | | Awards value | £3,500,000 | | Contracts value | £3,500,000 | ## Status | Field | Value | | --- | --- | | Tender status | Complete | | Lots status | Complete | | Awards status | Active | | Contracts status | Active | ## Buyer | Field | Value | | --- | --- | | Main buyer | UNITED KINGDOM NATIONAL NUCLEAR LABORATORY LIMITED | | Additional buyers | UNITED KINGDOM NATIONAL NUCLEAR LABORATORY | | Locality | WARRINGTON | | Post town | Warrington | | Postcode | WA3 6AE | | Country | England | | ITL 1 | TLD North West (England) | | ITL 2 | TLD6 Cheshire | | ITL 3 | TLD61 Warrington | | Local authority | Warrington | | Electoral ward | Birchwood | | Westminster constituency | Warrington North | | Delivery location | TLD North West (England), TLD45 Mid Lancashire | ## Supplier | Field | Value | | --- | --- | | Number of suppliers | 1 | | Supplier names | NORTH WEST PROJECTS LTD T/A ACTEMIUM DESIGN | ## CPV Codes ### Divisions - 71 - Architectural, construction, engineering and inspection services ### Codes - 71320000 - Engineering design services ## Release History - 25 Mar 2026 at 16:38 - Award - UK7 - Contract Details Notice - https://www.find-tender.service.gov.uk/Notice/027524-2026 - 27 Feb 2026 at 10:27 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/017743-2026 - 7 Nov 2025 at 15:16 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/072122-2025 - 24 Oct 2025 at 08:42 - Planning - UK2 - Preliminary Market Engagement Notice - https://www.find-tender.service.gov.uk/Notice/068040-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/027524-2026 25th March 2026 - Contract details notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/017743-2026 27th February 2026 - Contract award notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/072122-2025 7th November 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/068040-2025 24th October 2025 - Preliminary market engagement notice on Find a Tender ## Notice URLs - http://www.actemium.co.uk/ - http://www.uknnl.com - https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=99369&B= - https://www.legislation.gov.uk/ukpga/2023/54/contents - https://www.nnl.co.uk/ ## 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-05d301. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d301.json.