Mace Construct Limited v Baltic Investment Holdings Limited [2026] EWHC 976 (TCC) Knowledge Check

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Mace Construct Limited v Baltic Investment Holdings Limited
[2026] EWHC 976 (TCC) | Technology and Construction Court, London
Before Adrian Williamson KC sitting as a Deputy Judge of the High Court | Heard 15 April 2026 | Handed down 28 April 2026
Knowledge Check
Contract documents, design responsibility and extension-of-time review

This Knowledge Check tests Mace Construct Limited v Baltic Investment Holdings Limited [2026] EWHC 976 (TCC). The Part 8 claim concerned an amended 2016 JCT Design and Build form used for refurbishment of the Baltic Exchange Building.

The court considered whether tender clarifications and a schedule of derogations formed part of the contract, when Mace assumed design responsibility for listed derogation items, and whether a broad declaration could be made about planning delay. It also examined whether an adjudicator could revise an extension of time previously granted by the Employer's Agent.

Deputy High Court Judge Adrian Williamson KC granted declarations concerning incorporation and the limited transfer of design responsibility. He refused the proposed declarations about planning delay and the alleged inability of an adjudicator or court to revise an earlier completion date.

This Knowledge Check covers
  • The incorporated contract documents and the court's interpretation approach
  • The initial scope of works and the schedule of derogations
  • Planning responsibility and the refusal of declaration 6
  • Prospective extension-of-time assessment and paragraph 20 of the Scheme
  • The amended JCT Design and Build Contract 2016
  • Transfer of design responsibility
  • Relevant Omission instructions
  • The disposition of the seven declarations
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This Knowledge Check is provided for educational and professional development purposes only and does not constitute legal advice. The content reflects interpretations and analyses that may not apply to specific circumstances. Contract interpretation depends on specific wording, jurisdiction, and factual context. Always consult qualified legal professionals before making decisions based on this content. SCCSI and its contributors accept no liability for reliance on this material.