Landmark Mayfair freehold hits market
51ÂÒÂ× and United Kingdom Sotheby's International Realty have been jointly appointed by North Wind Capital to bring to market a rare Mayfair freehold development opportunity – a grand Georgian inspired mansion at 41 Upper Grosvenor Street, including the full original mews.
06 November 2025
Occupying an entire townhouse on one of the most prestigious streets in the heart of the Mayfair Conservation Area, the property is offered with vacant possession, presenting buyers with the flexibility to reimagine a complete Mayfair address that combines period heritage with the potential for contemporary luxury living in the heart of central London.
Currently comprising eight residential apartments, the scheme has entered final pre-construction phase, with final minor approvals expected imminently. With these final approvals, this freehold scheme represents a £100m GDV development opportunity.
Ben Williams, CEO of North Wind Capital, said: “We have delivered key planning milestones and secured development financing, which has naturally attracted strong unsolicited interest and makes this a natural moment to test the market. Buyers will be able to take forward an ‘oven-ready’ luxury residential redevelopment scheme, with transformation potential enhanced and delivery timing materially de-risked. North Wind Capital’s acquisition of the adjacent Reeves Mews car park earlier this year also provides embedded value and future optionality beyond the marketed scheme.â€
Nick Alderman, Head of Central London Land at 51ÂÒÂ×, said: "This is a rare opportunity to acquire a full block with scale, heritage, and exceptional redevelopment potential in the heart of Mayfair. Grosvenor Square's £20m conversion into a world-class urban garden, completing in 2026, represents the largest private contribution to West End public green space in a generation and will significantly enhance amenity and value across Mayfair. The surrounding district, renowned for luxury retail, Michelin-starred dining and ultra-prime residences, continues to attract discerning global buyers. Given the site's prominence and planning flexibility, we expect strong interest from domestic and international investors."
Becky Fatemi, Executive Partner, United Kingdom Sotheby's International Realty comments: “Demand for Mayfair is up due to the regeneration and injection of only the finest coming into the area. This includes the nearby £1.2bn Chancery Hotel’s grand opening, touted as the finest new hotel in Europe, news of Tramp’s first health and wellbeing club coming, as well as Blackstone’s new European HQ.
“The proposed refurbishment of the square itself by Grosvenor is only set to further elevate it as London’s most prolific address. We’re finding demand for properties in and around Grosvenor Square is up circa 28% compared to same period last year, notably taking away demand from other prime central London neighbourhoods such as Knightsbridge as Mayfair regains its crown.â€
ENDS