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£2,957,000 above fair value

SW1X 7BF

1 William Street, Knightsbridge, London, SW1X

5 Beds
5 Baths
459 m² Floor area
Type Flat
Listed 15 May 2026
Asking price £22,500,000
Price per m² £49,020 / m²

A masterpiece of mansion apartment living, Knightsbridge Gate is a Grade II listed building with a retained, Edwardian façade, comprising 15 meticulously designed residences.

Description

Built in 1902, Knightsbridge Gate is a Grade II listed building originally designed by architect W.D. Caröe for the Church Commissioners. The building retains the original façade in the Edwardian style, which has been painstakingly restored to preserve the heritage and glamour associated with Knightsbridge.

Where the North elevation has been restored, the South façade is entirely new, featuring stepped pergolas and terraces. The development has been designed so that the apartment’s principle rooms overlook the remarkable landscape of Belgravia. The quality of finish and attention to detail enhances the scale and grandeur of the building. MSMR architects have been responsible for transforming the internal spaces, drawing on the Edwardian heritage of the building with contemporary elements. A rich palette of materials, colours and texture, combined with intricate detailing and bespoke joinery, have created elegant interiors of the highest calibre.

The building is located at the gateway to Knightsbridge, moments from Hyde Park’s Southern border, Harrods and Harvey Nichols. Many of the apartments benefit from South-facing aspects towards Belgravia and the corner homes have views into Hyde Park.

Light and bright, the living spaces are inspired by the building’s historical beauty, the rich environs of Knightsbridge and contemporary fashion, with meticulous modern detailing and an exemplary choice of materials throughout.

Location

One of the world’s most prestigious residential addresses, Knightsbridge offers the best of everything. A magnificent 350 acres of green space at Hyde Park. Internationally renowned retail and restaurants. Charming cobbled streets, artisan shops, five-star hotels and exceptional connections.

The evolution of Knightsbridge’s latest destinations is attracting some of the best retailers in London and a carefully curated selection of shops and bars. Cobbled Motcomb Street is lined with independent boutiques, and Pavillion Road is the ideal place for artisan brands and high-end eateries.

Square Footage: 4,944 sq ft
Leasehold with approximately 995 years remaining.


Additional Info

Service Charge: £15/sqft - excludes building insurance

How the asking price has moved

May 2026
£22,500,000
Listed at original asking price

1 William Street, Knightsbridge, London, SW1X

Our fair price estimate
£19,543,000
Nearby sold prices per m² × UK HPI × 459 m² floor area (EPC-declared)
Asking price £22,500,000
Fair price £19,543,000
Difference ↑ £2,957,000 over
Price per m² £49,020 / m²
Contact landlord
About this valuation

Fair price calculated from HM Land Registry sold prices in the same postcode area, adjusted by the UK House Price Index, and multiplied by the EPC-declared floor area of 459 m². Updated daily.