4 bed flat for sale Grosvenor Square, Mayfair, London
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About this property
Occupying a high floor within one of Mayfair's most impeccably serviced residential buildings, this Four Seasons-managed lateral apartment offers 3,317 sq ft of elegant, hotel-style living at the heart of Grosvenor Square. Designed for effortless comfort and privacy, it combines generous proportions and a thoughtful finish, making it particularly appealing to international buyers seeking a turnkey London base with full concierge support.
Key features
- Turnkey
- Highly Sought After Location
- Light Infused
Floorplan
Price guide
£7,386 per sq ft, above 9 in 10 recent sales in W1K (£1,723–£4,685, 10th–90th percentile, 42 sales over 24 months).
Lowest and highest are the 10th and 90th percentiles of 42 homes sold in W1K over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in W1K →
Location
Grosvenor Square, Mayfair, London, W1K 6LE
- Council tax
- Band D (Approx £1,050/year)The agent has not stated the band, so band D is shown as the local reference: Westminster's 2026/27 area average, including the typical parish precept. The actual band and any discounts change the bill.
Mortgage and stamp duty
A £22,050,000 mortgage. Most lenders would want a household income of about £4,900,000 to support it.
A guide only, for a capital repayment mortgage. The rate you are offered and what you can borrow depend on your circumstances and a full application with a lender or broker. Your home may be repossessed if you do not keep up repayments on your mortgage.
Historic sold prices nearby
HM Land Registry sales in W1K 6LE. Floor areas from Energy Performance Certificates where matched.
| Address | Type | Sold | Size | Size | £/sq ft | Price |
|---|---|---|---|---|---|---|
| Flat 3, 18, Grosvenor Square Flat / maisonette | Flat / maisonette | Oct 2021 | 3,315 sq ft £5,083/sq ft | 3,315 sq ft | £5,083 | £16,850,000 |
| Flat 2, 18, Grosvenor Square Flat / maisonette · new build | Flat / maisonette · new build | Apr 2006 | 3,455 sq ft £352/sq ft | 3,455 sq ft | £352 | £1,214,518 |
| Flat 3, 18, Grosvenor Square Flat / maisonette · new build | Flat / maisonette · new build | Apr 2006 | 3,315 sq ft £340/sq ft | 3,315 sq ft | £340 | £1,128,009 |
All sales on Grosvenor Square → All sold prices in Westminster →
Area insights
The neighbourhood around this property.



