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3 bed flat for sale Lowndes Square, London, SW1X

Guide price

£18,500,000

Added on 18/10/2026

Type: Flat
Bedrooms: 3
Bathrooms: 4
Size: £6,042 per sq ft
Tenure: Leasehold

Council tax Band H £2,099 a year

Key features

Town/City

About this property

This laterally converted apartment, distinguished by its double-height pitched ceiling of 5.5m in height, four bedroom suites and roof terrace. Forming part of this recently completed development, the property is presented in excellent condition with one underground parking space and 24-hour concierge service.

Floorplan

Council tax

Band H £2,099 a year

Per year

Band A

£700
Band B

£816
Band C

£933
Band D

£1,050
Band E

£1,283
Band F

£1,516
Band G

£1,749
Band H

This home: £2,099

This home is in band H, which costs £2,099 a year in Westminster for 2026/27.

Figures from MHCLG (Open Government Licence v3): the average bill for each band across Westminster, including the typical parish precept, so a parish's own bill can differ a little. Discounts lower the bill, such as 25% off for an adult living alone. Check a home's band on GOV.UK.

Price guide

100 comparables · within 0.7 miles

Priced above 99% of the 3-bed flats for sale nearby right now.

This home, £18,500,000 Median £3,100,000 · £1,567,500 – £7,680,000

Per square foot

£6,042 182% over

3-bed flats nearby £2,145

Against sold prices

223% over

SW1X sold median £1,871 / sq ft, 131 sales

Compared with 100 3-bed flats for sale within 0.7 miles, on the market now or already under offer. The range is the middle 80% of their asking prices. Sold prices are HM Land Registry sales in SW1X over the last 24 months, per square foot of EPC floor area. All sold £/sq ft in SW1X →

Location

Lowndes Square, London, SW1X

Open map Street View

Mortgage and stamp duty

Property price £18,500,000

£9.2m £27.8m

Deposit10% £1,850,000

£0 £18.5m

Interest rate 4.5%

0.5% 15%

Repayment period 25 years

5 years 40 years

A £16,650,000 mortgage. Most lenders would want a household income of about £3,700,000 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.

Properties sold nearby

HM Land Registry sales nearby. Floor areas from Energy Performance Certificates where matched.

Address	Type	Sold	Size	Size	£/sq ft	Price
Flat 1, 43, Lowndes Square Flat / maisonette	Flat / maisonette	Aug 2021	1,066 sq ft £1,584/sq ft	1,066 sq ft	£1,584	£1,688,000
Flat 2, 41 - 42, Lowndes Square Flat / maisonette	Flat / maisonette	May 2013	n/a	n/a	n/a	£1,900,000
Flat 2, 41 - 42, Lowndes Square Flat / maisonette	Flat / maisonette	Jun 2011	n/a	n/a	n/a	£2,550,000
Flat 8, 39, Lowndes Square Flat / maisonette	Flat / maisonette	Sept 2007	n/a	n/a	n/a	£700,000
Flat 2, 41 - 42, Lowndes Square Flat / maisonette	Flat / maisonette	Jan 2007	n/a	n/a	n/a	£1,280,000
4, 40, Lowndes Square Flat / maisonette	Flat / maisonette	Apr 2006	n/a	n/a	n/a	£3,950,000
7, 39 - 40, Lowndes Square Flat / maisonette	Flat / maisonette	Apr 2006	n/a	n/a	n/a	£950,000
1, 40, Lowndes Square Flat / maisonette	Flat / maisonette	Apr 2006	n/a	n/a	n/a	£2,500,000