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6 bed flat for sale London, SW1X

Guide Price

£25,000,000

Added on 29/09/2026

Type: Flat
Bedrooms: 6
Bathrooms: 5
Size: £3,347 per sq ft
Tenure: Ask agent

Council tax Band G £1,749 a year EPC F 31 potential D

Key features

2 Living rooms
5 Bathrooms
6 Bedrooms
Terrace

About this property

Outstanding six bedroom penthouse apartment with breath-taking views over the Hyde Park and The Serpentine. This widespread lavish apartment consists of 8,000 sq. ft.

Floorplan

Energy performance

F 31

Current

Potential

92+

81-91

69-80

55-68

57 D

39-54

21-38

31 F

1-20

This home is rated band F, scoring 31 out of 100. The average British home is band D. Its certificate says it could reach band D (57) if the improvements it recommends were carried out.

Read from the certificate published with this listing, so it may not be the latest one. Check the government EPC register for the full certificate and its recommendations.

Council tax

Band G £1,749 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

This home: £1,749
Band H

£2,099

This home is in band G, which costs £1,749 a year in Westminster for 2026/27. The band is from the agent's description, so check it before you rely on it.

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

77 comparables · within 3 miles

Priced above 88% of the 5+ bed flats for sale nearby right now.

This home, £25,000,000 Median £4,950,000 · £2,560,000 – £34,400,000

Per square foot

£3,347 108% over

5+ bed flats nearby £1,610

Against sold prices

79% over

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

Compared with 77 5+ bed flats for sale within 3 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

London, SW1X

Open map Street View

Mortgage and stamp duty

Property price £25,000,000

£12.5m £37.5m

Deposit10% £2,500,000

£0 £25m

Interest rate 4.5%

0.5% 15%

Repayment period 25 years

5 years 40 years

A £22,500,000 mortgage. Most lenders would want a household income of about £5,000,000 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 26, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Jul 2025	2,034 sq ft £2,802/sq ft	2,034 sq ft	£2,802	£5,700,000
Flat 14, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Jul 2025	1,948 sq ft £1,925/sq ft	1,948 sq ft	£1,925	£3,750,000
Flat 18b, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Nov 2024	n/a	n/a	n/a	£300,000
Flat 18b, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Apr 2022	n/a	n/a	n/a	£1,850,000
Flat 19b, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Mar 2020	n/a	n/a	n/a	£208,400
Flat 19b, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Apr 2019	n/a	n/a	n/a	£1,600,000
Flat 31, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Feb 2017	3,563 sq ft £814/sq ft	3,563 sq ft	£814	£2,900,000
Flat 6, Wellington Court, 116, Knightsbridge Flat / maisonette	Flat / maisonette	Mar 2016	2,594 sq ft £2,739/sq ft	2,594 sq ft	£2,739	£7,106,000