Our Data Sources
20, St. Marys Crescent, Isleworth has a single entry in the Land Registry from October 2013 and a single entry in the EPC database dated August 2011.
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 20, St. Marys Crescent, Isleworth, we estimate a market value of £1,540,431 and a rental value of £5,313 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £1,364,382 and £4,706 per month respectively.
Plot Size
HM Land Registry records the plot of land for 20, St. Marys Crescent, Isleworth as measuring 1,327 m2.
That makes it the largest plot in the postcode, where 28 of the 32 other houses have recorded plot data.
Energy Efficiency
20, St. Marys Crescent, Isleworth has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 26 Aug 2011.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 20, St. Marys Crescent, Isleworth completed on 3rd October 2013 at £905,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 this is the property's only sale.
Values of comparable properties have risen by 12.4% over the period since October 2013.
- Sold Oct 2013£905,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 20, St. Marys Crescent, Isleworth have sold within a radius of 630 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 16th January 2026, was 295, Jersey Road, Isleworth, TW7 5PH, a freehold house which sold for £1,266,950.
Read more about house prices in TW7.
- Sold Jan 2026£1,266,950 | 5 Bed House295, Jersey Road, Isleworth, TW7 5PH295, Jersey Road, Isleworth, TW7 5PH
- Sold Aug 2022£1,625,000 | 5 Bed House289, Jersey Road, Isleworth, TW7 5PH289, Jersey Road, Isleworth, TW7 5PH
- Sold Dec 2014£1,230,000 | 5 Bed House52, St. Marys Crescent, Isleworth, TW7 4NA52, St. Marys Crescent, Isleworth, TW7 4NA
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 48 addresses on St. Marys Crescent, Isleworth, TW7, 20, St. Marys Crescent, Isleworth comes out as the 16th largest and the 7th most expensive in our analysis of the public data.
It is also £965k more expensive than the average property across the TW7 district.
More reading links
Schools Nearby
- 1.1kmSpring Grove Primary School
- 1.3kmMarlborough Primary School
- 1.4kmThe Smallberry Green Primary School
- 400mIsleworth and Syon School for Boys
- 1.1kmBolder Academy
- 1.4kmThe Green School for Girls
More reading links
Public Transport Nearby
- 500mOsterley
- 1.1kmIsleworth
- 1.4kmSyon Lane
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.












