Our Data Sources
173, Syon Lane, Isleworth has 2 entries in the Land Registry , most recently in January 2023 and a single entry in the EPC database dated April 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 173, Syon Lane, Isleworth would be worth £661,558, with a potential rental value of £2,877 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £585,952, with a rental value of £2,548 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
173, Syon Lane, Isleworth occupies a 245 m2 plot as recorded by HM Land Registry.
All 18 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.
Energy Efficiency
173, Syon Lane, Isleworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 09 Apr 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
173, Syon Lane, Isleworth last changed hands on 9th January 2023, selling for £795,000. The transaction was logged as a freehold house by HM Land Registry.
In total it has sold twice since 1995.
The market for similar properties has dropped by 1.1% since January 2023.
- Sold Jan 2023£795,000
- Sold Apr 2007£345,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 102 sales of comparable properties within 740 metres of 173, Syon Lane, Isleworth across the last 2 years.
Most recently, 25, Oaklands Avenue, Isleworth, TW7 5PX, a freehold house, sold at £735,000 on the 12th December 2025.
Read more about house prices in TW7.
- Sold Dec 2025£735,000 | 4 Bed House25, Oaklands Avenue, Isleworth, TW7 5PX25, Oaklands Avenue, Isleworth, TW7 5PX
- Sold Feb 2023£605,000 | 4 Bed House181, Syon Lane, Isleworth, TW7 5PU181, Syon Lane, Isleworth, TW7 5PU
- Sold Feb 2021£492,000 | 4 Bed House185, Syon Lane, Isleworth, TW7 5PU185, Syon Lane, Isleworth, TW7 5PU
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Similar Properties Let Nearby
Agents in our network have reported 1 letting of a comparable property within 740 metres of 173, Syon Lane, Isleworth across the last 2 years.
The newest of these is 40, Syon Park Gardens, Isleworth, TW7 5NB, a freehold house let by Jorgensen Turner in August 2023.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
Location Comparison
Our analysis of the public data ranks 173, Syon Lane, Isleworth as the 26th largest and the 38th most expensive of the 127 addresses on Syon Lane, Isleworth, TW7.
Against the TW7 postcode district average, it is £123k more expensive than the typical property.
More reading links
Schools Nearby
- Marlborough Primary School900 m away
- The Smallberry Green Primary School1.2 km away
- Isleworth Town Primary School1.4 km away
- Bolder Academy300 m away
- Isleworth and Syon School for Boys800 m away
- The Green School for Girls1.0 km away
More reading links
Public Transport Nearby
- Syon Lane|700 m away
- Isleworth|1.3 km away
- Boston Manor|1.3 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.
