--- title: "DNWP0027- Lot 1B / WAGR B55 Demolition - Sellafield - A2R JV" ocid: "ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976.json" source: "Contracts Finder" current_stage: "Tender" buyer: "Altrad AtkinsRealis Joint Venture (A2R JV)" published: "2026-10-26" --- # DNWP0027- Lot 1B / WAGR B55 Demolition - Sellafield - A2R JV Buyer: Altrad AtkinsRealis Joint Venture (A2R JV) Current stage: Tender OCID: ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976.json) ## Summary Altrad AtkinsRealis Joint Venture (A2R JV) is procuring demolition and dismantling of the B55 Office Complex and B55.2 Turbine Hall within the WAGR complex at Sellafield. The works take the structures down to the existing ground-floor slab and include soft stripping, asbestos remediation, high-reach mechanical demolition of structural frames, cladding and reinforced-concrete floors, processing and segregation of demolition material, backfilling voids and clearing the site. Substation 65 sits within the buildings and must remain operational and protected from demolition effects, dust and water ingress. Basements and other retained structures also need safeguarding. The project supports removal of redundant infrastructure and hazard reduction across the wider WAGR decommissioning programme. The buyer invited offers at tender stage for this demolition works contract. The estimated value is £2.5 million to £5 million. The contract period is set to run from 1 April to 31 December 2027. The tender submission deadline was 10 November 2026 at 17:00 UTC. The procurement is divided into a single identified lot, Lot 1B. Small and medium-sized enterprises are considered suitable to bid; voluntary, community and social enterprises are not. The tender data provides no evaluation criteria or enquiry deadline to report. The procurement is intended to deliver demolition and site clearance at Sellafield, subject to the requirement to keep Substation 65 operational and protect retained structures. This opportunity suits demolition and nuclear-site contractors able to plan and deliver high-hazard dismantling work in a constrained operating environment. Relevant capability includes soft stripping, asbestos remediation, high-reach mechanical demolition, reinforced-concrete demolition, segregation and processing of demolition arisings, void backfilling and site clearance. Suppliers need to manage the risks of ageing structures, buried services, below-ground voids and incomplete historical records through robust surveys, demolition engineering and risk-informed planning. They must also be able to protect retained basements and structures and prevent impacts, dust and water ingress from affecting Substation 65 while it remains operational. The stated scale and complexity may also suit specialist SMEs with the technical capacity and experience to work safely within a nuclear decommissioning programme. ## Notice The B55 and B55.2 demolition project at Sellafield involves the controlled demolition and dismantling of the B55 Office Complex and B55.2 Turbine Hall, located within the WAGR complex, down to existing ground-floor slab level. The scope includes soft stripping, asbestos remediation, high-reach mechanical demolition of the structural frame, cladding and reinforced-concrete floors, together with segregation and processing of demolition arisings, backfilling of voids and final site clearance. A key constraint is Substation 65, which is located within the B55/B55.2 structure and must remain operational and be protected from demolition impacts, dust and water ingress throughout the works. Retained basements and associated structures also require protection, while uncertainties associated with ageing structures, buried services, below-ground voids and incomplete historical information must be managed through robust surveys, demolition engineering and risk-informed planning. Overall, the project is intended to provide a safe, demolition-led solution that reduces workforce exposure, removes redundant infrastructure and supports accelerated hazard reduction across the wider WAGR decommissioning programme. Additional information: https://www.linkedin.com/company/a2r-altrad-atkinsrealis-remediation https://www.gov.uk/government/news/sellafield-ltd-awards-high-hazard-risk-reduction-framework-contract ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/3244a195-4d3f-4923-b52f-8858e90ad9d1 | | Notice type | Tender Notice | | Procurement type | Standard | | Procurement category | Works | | Procurement method | Not Specified | | Procurement method details | Not specified | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Tender | ## Dates | Field | Value | | --- | --- | | Publication date | 26 Oct 2026 | | Submission deadline | 10 Nov 2026 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 1 Apr 2027 - 31 Dec 2027 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | £5,000,000 | | Lots value | Not specified | | Awards value | Not specified | | Contracts value | Not specified | ## Status | Field | Value | | --- | --- | | Tender status | Active | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | Altrad AtkinsRealis Joint Venture (A2R JV) | | Locality | MOOR ROW | | Postcode area | Carlisle | | Postcode | CA24 3HY | | Country | England | | ITL 1 | TLD North West (England) | | ITL 2 | TLD1 Cumbria | | ITL 3 | TLD13 Cumberland | | Local authority | Cumberland | | Electoral ward | Egremont North and St Bees | | Westminster constituency | Whitehaven and Workington | | Delivery location | Not specified | ## CPV Codes ### Divisions - 42 - Industrial machinery - 45 - Construction work - 98 - Other community, social and personal services ### Codes - 42151000 - Nuclear reactors - 45251111 - Construction work for nuclear reactors - 98113100 - Nuclear safety services ## Release History - 26 Oct 2026 at 16:00 - Tender - Tender Notice - https://www.contractsfinder.service.gov.uk/Notice/3244a195-4d3f-4923-b52f-8858e90ad9d1 ## Documents - https://www.contractsfinder.service.gov.uk/Notice/3244a195-4d3f-4923-b52f-8858e90ad9d1 26th October 2026 - Opportunity notice on Contracts Finder - https://www.competefor.co.uk/business/viewOpportunityDetailsSupplier.html?id=121802067 Please follow this link to view the notice. ## Notice URLs - https://www.gov.uk/government/news/sellafield-ltd-awards-high-hazard-risk-reduction-framework-contract - https://www.linkedin.com/company/a2r-altrad-atkinsrealis-remediation ## Provenance This Markdown file is an alternate public rendering of the D3 Tenders contract record. 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