Helical: Major letting agreed at Brettenham House

22^nd October 2026

HELICAL PLC

("Helical" or the "Company")

Major letting agreed at Brettenham House, London, WC2

Helical plc announces that an Agreement for Lease has been exchanged with FGS Global for the sixth, eight and ninth floors at Brettenham House, comprising 23,887 sq ft of prime office space and a private terrace benefiting from spectacular views over the Thames. FGS Global, the strategic leadership advisory firm, will take occupation of the space in January 2027 for a 10 year term.

Practical completion of the comprehensive refurbishment of this 128,000 sq ft historic 1930's Art Deco office building is due to occur at the end of October 2026 and there are strong levels of interest in the remaining space. The refurbishment has involved the substantial remodelling of the building while carefully restoring its historic façade and Art Deco features, including two marble‑clad staircases. The completed scheme will deliver prime office accommodation with enhanced amenities, including five external terraces, a triple‑height reception and a new dedicated entrance accessed via Savoy Street.

Helical is delivering the project on behalf of the owner, Thames Brettenham Limited, through a development management agreement, for which it receives a development management fee and a profit share linked to rental performance which is payable once the building is successfully let.

Rob Sims, Chief Investment Officer of Helical, said: "We are pleased to see our vision for the complex remodelling project at Brettenham House come to fruition and to see a leading organisation such as FGS Global relocate to the building. We look forward to completing the refurbishment works later this month and maintaining the leasing momentum."

Simeon Goddard, Co-Chief Investment Officer of Northview Services Ltd. and representative of Thames Brettenham Limited, said: "We are delighted to have secured the initial letting at Brettenham House following its comprehensive refurbishment. This transaction reflects the exceptional quality delivered by Helical and we look forward to welcoming FGS Global to the building."

Savills and RX acted on behalf of Helical/Thames Brettenham Limited. FGS Global was represented by BBG Real Estate London.

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