Our Data Sources
40, Castle Road, Isleworth has 2 entries in the Land Registry, most recently in July 2014 and a single entry in the EPC database dated March 2014.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 2 out of 5 and is considered of medium accuracy.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 40, Castle Road, Isleworth is in very good condition we estimate a sale value of £366,312 and a rental value of £1,743 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £324,448 and a rental value of £1,544 per month.
Energy Efficiency
40, Castle Road, Isleworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 08 Mar 2014.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
According to HM Land Registry, 40, Castle Road, Isleworth was last sold on 30th July 2014 for £324,710 and was recorded as a leasehold flat.
The property has had 2 sales since 1995.
Since July 2014, the market for similar properties has risen by 1.8%.
- Sold Jul 2014£324,710
- Sold Nov 2013£251,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 204 sales of properties similar to 40, Castle Road, Isleworth within a radius of 370 metres since 2020.
The most recent example is Flat 20, St. Johns Court, St. Johns Road, Isleworth, TW7 6PA, a leasehold flat which sold for £120,000 on the 7th May 2026.
Read more about house prices in TW7.
- Sold May 2026£120,000 | 2 Bed FlatFlat 20, St. Johns Court, St. Johns Road, Isleworth, TW7 6PAFlat 20, St. Johns Court, St. Johns Road, Isleworth, TW7 6PA
- Sold Apr 2026£146,000 | 2 Bed Flat15 Langtry Court, Lanadron Close, Isleworth, TW7 5GB15 Langtry Court, Lanadron Close, Isleworth, TW7 5GB
- Sold Mar 2026£385,000 | 2 Bed FlatFlat 9, St. Johns Court, St. Johns Road, Isleworth, TW7 6PAFlat 9, St. Johns Court, St. Johns Road, Isleworth, TW7 6PA
- Sold Feb 2026£315,000 | 2 Bed Flat34 Langtry Court, Lanadron Close, Isleworth, TW7 5GB34 Langtry Court, Lanadron Close, Isleworth, TW7 5GB
- Sold Sep 2025£346,000 | 2 Bed FlatFlat 34, Wotton House 71, St. Johns Road, Isleworth, TW7 6GXFlat 34, Wotton House 71, St. Johns Road, Isleworth, TW7 6GX
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £578,312, ranging from £319,563 to £771,156.
- 42 Castle Road
2 Bed Flat | 4 m | Est. Value: £328,480
- 38 Castle Road
4 Bed House | 6 m | Est. Value: £655,167
- 36 Castle Road
4 Bed House | 11 m | Est. Value: £704,731
- 32 Castle Road
4 Bed House | 20 m | Est. Value: £771,156
- 27 Copper Mill Drive
2 Bed House | 21 m | Est. Value: £331,194
Location Comparison
Castle Road, Isleworth, TW7 has a total of 81 addresses. According to our analysis of all the public data, 40, Castle Road, Isleworth is the 77th largest and the 77th most expensive property on the street.
When compared to the postcode district it is £169k less expensive than the average property in TW7.
More reading links
Schools Nearby
- Isleworth Town Primary School400 m away
- The Smallberry Green Primary School600 m away
- St Mary's Catholic Primary School, Isleworth700 m away
- Gumley House RC Convent School, FCJ500 m away
- Isleworth and Syon School for Boys1.0 km away
- The Green School for Boys1.0 km away
More reading links
Public Transport Nearby
- Isleworth|200 m away
- Syon Lane|1.2 km away
- Osterley|1.5 km away
Available Internet Speeds
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.
