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DNWP0027- Lot 1B / WAGR B55 Demolition - Sellafield - A2R JV

Altrad AtkinsRealis Joint Venture (A2R JV)

This public procurement record has 1 release in its history.

Tender

26 Oct 2026 at 16:00

Tender Notice
Summary of the contracting process

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.

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Notice Information

Notice Title

DNWP0027- Lot 1B / WAGR B55 Demolition - Sellafield - A2R JV

Notice Description

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

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-b5fd17-78ed4213-9d0a-4592-888a-9fb536485976
Publication Source
Contracts Finder
Latest Notice
https://www.contractsfinder.service.gov.uk/Notice/3244a195-4d3f-4923-b52f-8858e90ad9d1
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
Tender Notice
Procurement Type
Standard
Procurement Category
Works
Procurement Method
Not Specified
Procurement Method Details
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

42 - Industrial machinery

45 - Construction work

98 - Other community, social and personal services

CPV Codes

42151000 - Nuclear reactors

45251111 - Construction work for nuclear reactors

98113100 - Nuclear safety services

Notice Value(s)

Tender Value
£5,000,000 £1M-£10M
Lots Value
Not specified
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
26 Oct 2026Yesterday
Submission Deadline
10 Nov 20262 weeks to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
1 Apr 2027 - 31 Dec 2027 6-12 months
Recurrence
Not specified

Notice Status

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

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
Altrad AtkinsRealis Joint Venture (A2R JV)
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
MOOR ROW
Postcode
CA24 3HY
Postcode Area
Carlisle
Country
England
Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD1 Cumbria
Small Region (ITL 3)
TLD13 Cumberland
Delivery Location
Not specified
Local Authority
Cumberland
Electoral Ward
Egremont North and St Bees
Westminster Constituency
Whitehaven and Workington

Further Information

Notice Documents

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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