Our Data Sources
Flat 1, 403, St. Margarets Road, Isleworth has 61 entries in the Land Registry , most recently in April 2026 and a single entry in the EPC database dated December 2025.
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 Flat 1, 403, St. Margarets Road, Isleworth would be worth £528,873, with a potential rental value of £2,373 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £468,430, with a rental value of £2,102 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 1, 403, St. Margarets Road, Isleworth has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 22 Dec 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
Flat 1, 403, St. Margarets Road, Isleworth last changed hands on 17th April 2026, selling for £495,000. The transaction was logged as a leasehold flat by HM Land Registry.
In total it has sold 6 times since 1995.
The market for similar properties has dropped by 23.4% since April 2026.
- Sold Apr 2026£495,000
- Sold Sep 2010£305,000
- Sold Oct 2008£400,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 57 sales of comparable properties within 450 metres of Flat 1, 403, St. Margarets Road, Isleworth across the last 2 years.
Most recently, Flat 79, Lion Court, Swan Street, Isleworth, TW7 6YA, a leasehold flat, sold at £300,000 on the 27th August 2025.
Read more about house prices in TW7.
- Sold Aug 2025£300,000 | 2 Bed FlatFlat 79, Lion Court, Swan Street, Isleworth, TW7 6YAFlat 79, Lion Court, Swan Street, Isleworth, TW7 6YA
- Sold Jun 2024£481,000 | 2 Bed FlatFlat 28, Swan Court, Swan Street, Isleworth, TW7 6XWFlat 28, Swan Court, Swan Street, Isleworth, TW7 6XW
- Sold Aug 2020£500,000 | 2 Bed FlatFlat 102, Waterside Apartments 3, Railshead Road, Isleworth, TW7 7EPFlat 102, Waterside Apartments 3, Railshead Road, Isleworth, TW7 7EP
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Flat 1, 403, St. Margarets Road, Isleworth as the 9th largest and the 9th most expensive of the 12 addresses on St. Margarets Road, Isleworth, TW7.
Against the TW7 postcode district average, it is £3k less expensive than the typical property.
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Schools Nearby
- Worple Primary School100 m away
- The Blue School CofE Primary500 m away
- St Mary's Catholic Primary School, Isleworth600 m away
- Gumley House RC Convent School, FCJ700 m away
- The Green School for Boys1.4 km away
- The Green School for Girls1.6 km away
More reading links
Public Transport Nearby
- St Margarets (London)|1.1 km away
- Isleworth|1.4 km away
- Richmond|1.5 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband is available in the area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
