Our Data Sources
Flat 3, 18, Grosvenor Square has 21 entries in the Land Registry , most recently in October 2021 and a single entry in the EPC database dated March 2024.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 1 out of 5 and is considered of low accuracy.
Price Range & Condition
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Flat 3, 18, Grosvenor Square, we estimate a market value of £17,685,137 and a rental value of £45,159 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £15,663,979 and £39,998 per month respectively.
Energy Efficiency
Flat 3, 18, Grosvenor Square has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 19 Mar 2024.
The property is connected to mains gas and has partial double glazing. It is heated using Boiler and underfloor heating, mains gas.
Sold Prices
The most recent sale of Flat 3, 18, Grosvenor Square completed on 28th October 2021 at £16,850,000 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 the property has sold twice.
Values of comparable properties have dropped by 39.1% over the period since October 2021.
- Sold Oct 2021£16,850,000
- Sold Apr 2006£1,128,009
Similar Properties Sold Nearby
Over the past 2 years 29 properties similar to Flat 3, 18, Grosvenor Square have sold within a radius of 320 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 4th September 2024, was Flat 15, 15, Grosvenor Square, London, W1K 6LD, a leasehold flat which sold for £19,750,000.
Read more about house prices in W1.
- Sold Sep 2024£19,750,000 | 4 Bed FlatFlat 15, 15, Grosvenor Square, London, W1K 6LDFlat 15, 15, Grosvenor Square, London, W1K 6LD
- Sold Dec 2023£17,800,000 | 4 Bed FlatApartment 3.05, 20, Grosvenor Square, London, W1K 6USApartment 3.05, 20, Grosvenor Square, London, W1K 6US
- Sold Apr 2022£16,300,000 | 4 Bed FlatApartment 1.05, 20, Grosvenor Square, London, W1K 6USApartment 1.05, 20, Grosvenor Square, London, W1K 6US
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Properties Let Nearby
Over the past 2 years our Estate Agent network has recorded 1 let within 320 metres of Flat 3, 18, Grosvenor Square.
The latest, in June 2025, was Apartment 2.02, 65, Duke Street, London, W1K 5NX, a leasehold flat let by Maplewood Property.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Of the 273 addresses on Grosvenor Square, London, W1, Flat 3, 18, Grosvenor Square comes out as the 97th largest and the 66th most expensive in our analysis of the public data.
It is also £14.705m more expensive than the average property across the W1 district.
More reading links
Schools Nearby
- St George's Hanover Square CofE Primary School400 m away
- St Vincent's Catholic Primary School700 m away
- Hampden Gurney CofE Primary School1.0 km away
- The St Marylebone CofE School1.1 km away
- Westminster City School1.8 km away
- Marylebone Boys' School1.9 km away
More reading links
Public Transport Nearby
- Bond Street (Elizabeth line)|300 m away
- Bond Street|300 m away
- Marble Arch|500 m away
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












