Our Data Sources
Flat 7, Basil Mansions has 21 entries in the Land Registry , most recently in October 2024 and a single entry in the EPC database dated September 2018.
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
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 7, Basil Mansions, we estimate a market value of £3,597,408 and a rental value of £10,972 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £3,186,276 and £9,718 per month respectively.
Energy Efficiency
Flat 7, Basil Mansions has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 25 Sep 2018.
The property is not connected to mains gas and has single glazed windows. It is heated using Community scheme.
Sold Prices
The most recent sale of Flat 7, Basil Mansions completed on 7th October 2024 at £3,600,000 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 18.2% over the period since October 2024.
- Sold Oct 2024£3,600,000
- Sold Nov 1996£585,000
Similar Properties Sold Nearby
Over the past 2 years 20 properties similar to Flat 7, Basil Mansions have sold within a radius of 250 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 25th July 2025, was Flat 26, Wellington Court 116, Knightsbridge, London, SW1X 7PL, a leasehold flat which sold for £5,700,000.
Read more about house prices in SW3.
- Sold Jul 2025£5,700,000 | 3 Bed FlatFlat 26, Wellington Court 116, Knightsbridge, London, SW1X 7PLFlat 26, Wellington Court 116, Knightsbridge, London, SW1X 7PL
- Sold Oct 2024£3,750,000 | 3 Bed FlatFlat 3, 7, Sloane Street, London, SW1X 9LEFlat 3, 7, Sloane Street, London, SW1X 9LE
- Sold Jan 2024£2,900,000 | 3 Bed FlatFlat 11, Basil Mansions, Basil Street, London, SW3 1APFlat 11, Basil Mansions, Basil Street, London, SW3 1AP
•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 250 metres of Flat 7, Basil Mansions.
The latest, in November 2025, was Flat 56, Lincoln House, Basil Street, London, SW3 1AW, a leasehold flat let by Maplewood Property.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Of the 233 addresses on Basil Street, London, SW3, Flat 7, Basil Mansions comes out as the 30th largest and the 34th most expensive in our analysis of the public data.
It is also £1.347m more expensive than the average property across the SW3 district.
More reading links
Schools Nearby
- Holy Trinity CofE Primary School800 m away
- St Joseph's Catholic Primary School800 m away
- Marlborough Primary School900 m away
- St. Thomas More Language College800 m away
- Westminster City School1.5 km away
- The Grey Coat Hospital1.9 km away
More reading links
Public Transport Nearby
- Knightsbridge|100 m away
- Hyde Park Corner|600 m away
- Sloane Square|900 m away
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband is available in the area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.












