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ARTICLE · 22 JULY 2026

Legal Developments In Construction Law July 2026

Mayer Brown
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This comprehensive legal update examines six critical developments in UK construction law, from the first judicial interpretation of Building Safety Act contribution claims against defective cladding suppliers to new guidance on Higher Risk Buildings compliance. The analysis explores landmark court decisions on adjudication enforcement, remediation contribution orders, and the practical implications of evolving building safety regulations for contractors, developers, and product suppliers.

United KingdomReal Estate and Construction
Brad Fearn
Brad Fearn
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1. Court delivers first judgment on defective cladding product claims under s149 of the Building Safety Act

In Mulalley & Co. Limited v Sto Limited & Sto SE & Co. KGaA [2026] EWHC 1552 (TCC), the High Court assessed for the first time the quantification of a contractor's contribution claim against the supplier of a defective external cladding system.

Mulalley & Co. Limited ("Mulalley") was engaged in 2006 to carry out refurbishment works at Parkside Court, a residential tower block in Chelmsford, Essex. Mulalley subcontracted cladding installation specifying use of the StoTherm Classic System supplied by Sto Limited ("Sto"). Following the Grenfell fire in June 2017, the cladding was identified as defective. Mulalley entered into a settlement agreement with the building owner to remove and replace the cladding. Mulalley then pursued a contribution claim against Sto pursuant to s.149 of the Building Safety Act 2022 (the "BSA"). As Sto entered administration in January 2025, Mulalley

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This Mayer Brown article provides information and comments on legal issues and developments of interest. The foregoing is not a comprehensive treatment of the subject matter covered and is not intended to provide legal advice. Readers should seek specific legal advice before taking any action with respect to the matters discussed herein.

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