Source: https://tendernation.io/opportunities/01a13bd9-e7dd-71c0-a306-6df0b0660b7e/defining-period

awarded GB restricted procedure

# Defining Period

[United Kingdom National Nuclear Laboratory Limited](https://tendernation.io/buyers/united-kingdom-national-nuclear-laboratory-limited)

Estimated value

Not stated

Published

26 Mar 2026

Deadline

Rolling deadline

## About this tender

The first call-off contract serves as a bridge between the Concept Design and Preliminary Design phases. It will require the appointed Strategic Design Partner to work in collaboration with UKNNL to integrate into the delivery team to develop a scope for the Preliminary Design phase that underpins the objectives of the overall programme.

Source

Find a Tender (UK) · Notice ocds-h6vhtk-067509-2026-03-26T13:01:42Z

[View official notice](https://www.find-tender.service.gov.uk/Notice/ocds-h6vhtk-067509-2026-03-26T13:01:42Z)

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