Aviva Investors completes major letting at flagship Pegasus Mayfair development

17 February 2026

(London) – Aviva Investors, the global asset management business of Aviva plc, announces it has completed a letting agreement with Sona Asset Management at its Pegasus development in Mayfair, Central London.

The agreement will see Sona Asset Management take approximately 31,500 sq ft, spread across the first three upper floors of the building, meaning almost 50 per cent the office space has now been pre-let.

Pegasus Mayfair is a heritage-led redevelopment by Aviva Investors of Pegasus House and Nuffield House, two historic buildings on the corner of Piccadilly and Sackville Street. Retaining the original front and side-facing façades of Nuffield House whilst redeveloping Pegasus House to reflect the original masterplan by architect George J. Skipper.

When complete, Pegasus Mayfair will provide approximately 60,000 sq ft of office space spread across six floors, as well as six residential apartments and nearly 14,000 sq ft of commercial space at street level, including a retail parade facing Piccadilly and a restaurant on Sackville Street. The project is targeting a BREEAM ‘Outstanding’ and NABERS 4.5 Stars rating.

Pegasus Mayfair is one of several Central London schemes being developed by Aviva Investors. This includes One Liverpool Street and its sister scheme, 101 Moorgate, which together will provide approximately 250,000 sq ft of best-in-class office and retail space when complete, as well as New Broad Street House and 130 Fenchurch Street, which is expected see the creation of a showpiece 34-storey tower in one of the most dynamic office clusters in the Square Mile.

Ed Atterwill, Head of Central London at Aviva Investors, said:

“Pegasus, Mayfair is the sixth Central London development being delivered by Aviva Investors over a three-year period and demonstrates our ability to deliver a best-in-class mixed-use development that can attract leading brands, whilst remaining sensitive to the historic character and value of the original buildings. We’re delighted to reach an agreement with Sona Asset Management, which we believe shows the continued strength of London’s core office market and the ability of well-developed, high-quality assets to attract leading companies. This is a great example of rejuvenating assets at risk of becoming outdated and turning them into flagship schemes that are ready for the future. We believe doing so will mean it continues to contribute to long-term outcomes for investors.”

For more information contact:

Steve Ainger

Head of Media Relations

James Morgan

Media Relations Manager

Important information

About Aviva Investors

Aviva Investors is the global asset management business of Aviva plc. The business delivers investment management solutions, services and client-driven performance to clients worldwide. Aviva Investors operates in 9 countries in Asia Pacific, Europe, North America and the United Kingdom with £246 billion in assets under management as at 30 June 2025.

Important information

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