1/7
£25,000,000
10 beds · 10 baths · 12,700 sq ft
Lowndes Square, Belgravia, SW1X
0 miles
away
Freehold
Added on 31/10/2023 
1/2
1/2
£25,000,000
Guide Price 10 bed house for sale Lowndes Square, London, SW1X
10
beds 9
baths Terraced
Freehold
Added on 29/07/2026
About this property
A unique freehold 'key-house' located in Knightsbridge. This development opportunity has planning permission for a magnificent residence with a linked mews house.
Description
The existing property is currently laid out as three separate apartments plus a mews house at the rear. The property is the principal 'key-house' on the most sought after east side and is the only property with direct views through to Sloane Street.
- Property type
- Terraced
- Bedrooms
- 10
- Bathrooms
- 9
- Floor area
- 7,106 sq ft
- Tenure
- Freehold
- Council tax band
- H
- Postcode
- SW1X 9HB
- Listed
- 29 Jul 2026
Key features
- A rare development opportunity
- Key building with open westerly aspect towards Sloane Street
- Planning permission to create a combined house and mews house totalling approximately 12,643 sq ft
- Proposed accommodation for 8 reception rooms, 7 principle bedroom suites and 2 staff bedrooms
- Parking, pool, leisure and lift
Price guide
This home
£3,518 / sq ft
Area average (sold)
£2,105 / sq ft
Price per area, sold homes nearby
£1,276 / sq ft
£3,518 / sq ft
£3,016 / sq ft
Lowest
This home
Highest
£3,518 per sq ft — above 9 in 10 recent sales in SW1X (£1,276–£3,016, 10th–90th percentile, 130 sales over 24 months).
Lowest and highest are the 10th and 90th percentiles of 130 homes sold in SW1X over the last 24 months. This home's figure uses its asking price. All sold £/sq ft in SW1X →
Location
Lowndes Square, London, SW1X, SW1X 9HB
Sold prices in SW1X 9HB
HM Land Registry sales in SW1X 9HB. Floor areas from Energy Performance Certificates where matched.
| Address | Type | Sold | Size | Size | £/sq ft | Price |
|---|---|---|---|---|---|---|
| 15, Lowndes Square Flat / maisonette | Flat / maisonette | Jul 2020 | 807 sq ft £5,946/sq ft | 807 sq ft | £5,946 | £4,800,000 |
| Flat 4, 11, Lowndes Square Flat / maisonette | Flat / maisonette | Apr 2011 | 1,356 sq ft £1,622/sq ft | 1,356 sq ft | £1,622 | £2,200,000 |
| 15, Lowndes Square Flat / maisonette | Flat / maisonette | Jan 2011 | 807 sq ft £1,734/sq ft | 807 sq ft | £1,734 | £1,400,000 |
| Flat 4, 11, Lowndes Square Flat / maisonette | Flat / maisonette | Feb 2010 | 1,356 sq ft £1,117/sq ft | 1,356 sq ft | £1,117 | £1,515,000 |
| Flat 1, 15, Lowndes Square Flat / maisonette | Flat / maisonette | Aug 2009 | 1,658 sq ft £1,185/sq ft | 1,658 sq ft | £1,185 | £1,965,000 |
| Lower Ground Floor Flat, 11, Lowndes Square Flat / maisonette | Flat / maisonette | Mar 2007 | — | — | — | £775,000 |
| Flat 1, 11, Lowndes Square Flat / maisonette | Flat / maisonette | Mar 2007 | 2,594 sq ft £549/sq ft | 2,594 sq ft | £549 | £1,425,000 |
| Basement And Ground Floor Flat, 19, Lowndes Square Flat / maisonette | Flat / maisonette | Nov 2006 | 2,831 sq ft £1,016/sq ft | 2,831 sq ft | £1,016 | £2,875,000 |
All sales on Lowndes Square → All sold prices in Westminster →
Area insights
The neighbourhood around this property.
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