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Partial demolition of the two reactor buildings, reducing their overall height , together with an extensive package of civil new build and remedial works.
This procurement was divided into 1 lots, each awarded separately. 3 bids were received in total.
Lots
1
Initial Term Value
£71,813,292
Bids Received
3
Bids per Lot
3
Lot
Value
Bids Received
Awarded To
Status
Lot 1
£71,813,292
initial term
3
Costain Limited
active
Data note: the source feed marks these lots as cancelled even though their awards are active — an inconsistency in the published notice. The award status is shown above.
Award criteria
Weightings from the notice.
Social Value10%
Technical40%
Project Management23%
Price27%
Government spending data: This supplier has received £2,436,528,179 in 2,981 payments (over £25k) from Department for Transport, Welsh Government, Cabinet Office, DfT GPC, Ministry of Defence and 5 more public bodies (2012-06-07 to 2026-05-29). View full payment history →
Key Dates
Published
7 October 2025
Tender Open
-
Tender Deadline
-
Award Date
-
Contract Signed
2 October 2025
Contract Start
-
Contract End
-
Procurement Details
Method
Selective — suppliers are shortlisted first
Method Details
Competitive procedure with negotiation
Route to market
Restricted or negotiated
Main category
Works
Category
Concrete repair work
Delivery location
UKL12
Open under
WTO Government Procurement Agreement
Buyer Reference
ocds-h6vhtk-0389bb
Legal Basis
Public Contracts Regulations 2015 (EU Directive 2014/24)
CPV Codes
45111100 – Demolition work; 45262330 – Concrete repair work; 45111000 – Demolition, site preparation and clearance work; 45262110 – Scaffolding dismantling work; 45262120 – Scaffolding erection work; 45500000 – Hire of construction and civil engineering machinery and equipment with operator; 45111200 – Site preparation and clearance work; 45200000 – Works for complete or part construction and civil engineering work; 45113000 – Siteworks; 45262660 – Asbestos-removal work; 45510000 – Hire of cranes with operator; 45262100 – Scaffolding work; 45262310 – Reinforced-concrete work; 45262300 – Concrete work; 45111300 – Dismantling works; 45110000 – Building demolition and wrecking work and earthmoving work; 45000000 – Construction work; 45210000 – Building construction work