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3 bed flat for sale Upper Grosvenor Street, Mayfair, W1K

Guide Price

£4,950,000

Added on 29/09/2026

Type: Flat
Bedrooms: 3
Bathrooms: 3
Size: £2,745 per sq ft
Tenure: Leasehold

EPC C 69

Key features

Lift
Air Conditioning
Porter

About this property

This spacious apartment is found in a purpose-built block just off Grosvenor Square. It spans over five windows and extends to over 1,800 sqft. The flat benefits from 24 hour porterage and air conditioning throughout. Additionally, there is a private communal garden at the rear of the building.

Accommodation in the property comprises a large living/dining space, a kitchen, and the principal bedroom with en suite bathroom. There are two further double bedrooms (one of which is en suite) and an additional shower room.

Floorplan

Energy performance

C 69

Current

Potential

92+

81-91

69-80

69 C

72 C

55-68

39-54

21-38

1-20

This home is rated band C, scoring 69 out of 100. The average British home is band D. Its certificate says it could reach band C (72) 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

Ask agent

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

£2,099

The agent hasn't said which band this home is in; you can look it up on GOV.UK. In Westminster, 2026/27 bills run from £700 a year in band A to £2,099 in band H.

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.

Price guide

100 comparables · within 0.8 miles

Priced above 71% of the 3-bed flats for sale nearby right now.

This home, £4,950,000 Median £3,100,000 · £1,395,000 – £8,375,900

Per square foot

£2,745 38% over

3-bed flats nearby £1,990

Against sold prices

6% over

W1K sold median £2,600 / sq ft, 42 sales

Compared with 100 3-bed flats for sale within 0.8 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 W1K over the last 24 months, per square foot of EPC floor area. All sold £/sq ft in W1K →

Location

Upper Grosvenor Street, Mayfair, W1K

Open map Street View

Mortgage and stamp duty

Property price £4,950,000

£2.5m £7.4m

Deposit10% £495,000

£0 £5m

Interest rate 4.5%

0.5% 15%

Repayment period 25 years

5 years 40 years

A £4,455,000 mortgage. Most lenders would want a household income of about £990,000 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 20, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	Nov 2021	700 sq ft £2,716/sq ft	700 sq ft	£2,716	£1,900,000
Flat 22, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	Jul 2016	624 sq ft £2,371/sq ft	624 sq ft	£2,371	£1,480,000
Flat 20, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	Apr 2015	700 sq ft £2,108/sq ft	700 sq ft	£2,108	£1,475,000
Flat 19, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	May 2013	657 sq ft £2,170/sq ft	657 sq ft	£2,170	£1,425,000
Flat 19, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	Feb 2012	657 sq ft £952/sq ft	657 sq ft	£952	£625,000
Flat 18, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	May 2007	624 sq ft £1,201/sq ft	624 sq ft	£1,201	£750,000
Flat 17, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	Mar 2004	624 sq ft £597/sq ft	624 sq ft	£597	£373,000
Flat 2, 46, Upper Grosvenor Street Flat / maisonette	Flat / maisonette	Mar 2004	1,744 sq ft £559/sq ft	1,744 sq ft	£559	£975,000