Grosvenor Square, Mayfair

£20,000,000

Not valued

7 Beds

6 Baths

— Floor area

Type Flat

Listed 11 Sep 2026

About this property

A rare, lateral apartment measuring 5,149 sq ft with 6 windows overlooking Grosvenor Square, share of the freehold and 24 hour uniformed porter.

The central garden square is also set to be transformed with a new landscaping scheme and enhanced public realm, with the formerly closed area in front of the US Embassy being transformed into a magnificent public piazza fronting onto the new Rosewood Hotel.

Tenure: Share Of Freehold
Council Tax Band: H

Price history

How the asking price has moved

Sep 2026

£20,000,000

Listed at original asking price

The area

Prices, costs and transport nearby

What homes within 400 m sold for since Nov 2023, by type. Source: HM Land Registry.

Type Median Middle 80%

Flat This home

Median

57 sales

Terraced

Median

6 sales

Semi-Detached

Median

1 sale

Detached

Median

1 sale

Most recent sales

Address	Sold price	Date	Type
5A MOUNT STREET, W1K 3NE	£6,400,000	Jun 2026	Flat
Flat 6, 17, 17 THREE KINGS YARD, W1K 4JT	£3,950,000	Jun 2026	Flat
9 MOUNT ROW, W1K 3RG	£10,300,000	Nov 2025	Terraced
Flat 6, 21, 21 DAVIES STREET, W1K 3DE	£5,250,000	Jun 2025	Flat
Flat 9, 47, 47 GROSVENOR SQUARE, W1K 2HS	£5,750,000	May 2025	Flat
Flat 3, 4, 4 MOUNT STREET, W1K 3ND	£5,347,500	Nov 2024	Flat
Flat 6, 5, 5 GROSVENOR SQUARE, W1K 4AF	£9,150,000	Oct 2024	Flat
Flat 15, 15, 15 GROSVENOR SQUARE, W1K 6LD	£19,750,000	Sep 2024	Flat
Flat 11, 47, 47 GROSVENOR SQUARE, W1K 2HS	£7,850,000	Aug 2024	Flat
Flat 2, 50, 50 SOUTH AUDLEY STREET, W1K 2QE	£2,050,000	Aug 2024	Flat
Flat 1, 11, 11 MOUNT STREET, W1K 2RB	£12,000,000	Aug 2024	Flat
Flat 18, 33, 33 GROSVENOR SQUARE, W1K 2HL	£664,730	Apr 2024	Flat
Flat B, 87, 87 DUKE STREET, W1K 5PQ	£1,170,800	Mar 2024	Flat
Flat 38, 1, 1 GROSVENOR SQUARE, W1K 4BN	£5,000,000	Dec 2023	Flat
Flat 45, 1, 1 GROSVENOR SQUARE, W1K 4BN	£11,263,360	Dec 2023	Flat

Source: HM Land Registry · within 200 m · most recent first

Location

Grosvenor Square, Mayfair

This listing doesn't publish a floor area, so we can't calculate a fair price estimate. All other details are still available.

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About this valuation

Fair price calculated from HM Land Registry sold prices in the same postcode area, adjusted by the UK House Price Index. Updated daily.