Our Data Sources
149, Syon Lane, Isleworth has a single entry in the Land Registry from August 2021 and a single entry in the EPC database dated February 2021.
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 149, Syon Lane, Isleworth would be worth £596,167, with a potential rental value of £2,612 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £528,034, with a rental value of £2,313 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
149, Syon Lane, Isleworth occupies a 218 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 16th largest.
Energy Efficiency
149, Syon Lane, Isleworth has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Feb 2021.
The property is connected to mains gas and has mostly double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
149, Syon Lane, Isleworth last changed hands on 11th August 2021, selling for £520,000. The transaction was logged as a freehold house by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has dropped by 3.2% since August 2021.
- Sold Aug 2021£520,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 63 sales of comparable properties within 700 metres of 149, Syon Lane, Isleworth across the last 2 years.
Most recently, 211, Syon Lane, Isleworth, TW7 5PU, a freehold house, sold at £695,000 on the 12th November 2025.
Read more about house prices in TW7.
- Sold Nov 2025£695,000 | 3 Bed House211, Syon Lane, Isleworth, TW7 5PU211, Syon Lane, Isleworth, TW7 5PU
- Sold Oct 2025£597,450 | 3 Bed House88, Syon Lane, Isleworth, TW7 5NQ88, Syon Lane, Isleworth, TW7 5NQ
- Sold Feb 2025£550,000 | 3 Bed House102, Syon Lane, Isleworth, TW7 5NJ102, Syon Lane, Isleworth, TW7 5NJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Properties Let Nearby
Agents in our network have reported 1 letting within 700 metres of 149, 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 149, Syon Lane, Isleworth as the 51st largest and the 69th most expensive of the 127 addresses on Syon Lane, Isleworth, TW7.
Against the TW7 postcode district average, it is £61k 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.
