Our Data Sources
40, William Mews has a single entry in the Land Registry from June 2010 and a single entry in the EPC database dated March 2022.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 40, William Mews would be worth £4,671,887, with a potential rental value of £16,329 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £4,137,957, with a rental value of £14,463 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
40, William Mews has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 28 Mar 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and underfloor heating, mains gas.
Sold Prices
40, William Mews last changed hands on 29th June 2010, selling for £2,625,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has dropped by 11.9% since June 2010.
- Sold Jun 2010£2,625,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 5 sales of comparable properties within 330 metres of 40, William Mews across the last 2 years.
Most recently, 49, William Mews, London, SW1X 9HQ, a freehold house, sold at £5,250,000 on the 30th April 2025.
Read more about house prices in SW1.
- Sold Apr 2025£5,250,000 | 5 Bed House49, William Mews, London, SW1X 9HQ49, William Mews, London, SW1X 9HQ
- Sold Sep 2022£5,100,000 | 4 Bed House2, Wilton Row, London, SW1X 7NR2, Wilton Row, London, SW1X 7NR
- Sold Jun 2022£5,100,000 | 4 Bed House4, Studio Place, London, SW1X 8EW4, Studio Place, London, SW1X 8EW
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Properties Let Nearby
Agents in our network have reported 1 letting within 330 metres of 40, William Mews across the last 2 years.
The newest of these is Flat 56, Lincoln House, Basil Street, London, SW3 1AW, a leasehold flat let by Maplewood Property in November 2025.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Our analysis of the public data ranks 40, William Mews as the 3rd largest and the 3rd most expensive of the 50 addresses on William Mews, London, SW1.
Against the SW1 postcode district average, it is £2.905m more expensive than the typical property.
More reading links
Schools Nearby
- Holy Trinity CofE Primary School900 m away
- St Peter's Eaton Square CofE Primary School900 m away
- St Joseph's Catholic Primary School1.0 km away
- St. Thomas More Language College1.0 km away
- Westminster City School1.3 km away
- The Grey Coat Hospital1.7 km away
More reading links
Public Transport Nearby
- Knightsbridge|400 m away
- Hyde Park Corner|400 m away
- Sloane Square|1.0 km away
Available Internet Speeds
Ofcom's latest figures show poor internet coverage in this area, which may mean weak or no connectivity.
According to recent data from Ofcom, Slow/none Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
