Our Data Sources
25, Ham Island, Windsor has 2 entries in the Land Registry, most recently in October 2019 and a single entry in the EPC database dated October 2021.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
Price Range & Condition
In very good condition, we estimate 25, Ham Island, Windsor would be worth £997,440, with a potential rental value of £3,308 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £883,447, with a rental value of £2,930 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
25, Ham Island, Windsor occupies a 853 m2 plot as recorded by HM Land Registry.
Of the 36 other houses in this postcode, 34 have recorded plot sizes, and this one ranks as the 6th largest.
Energy Efficiency
25, Ham Island, Windsor has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 27 Oct 2021.
The property is not connected to mains gas and has fully triple glazed windows. It is heated using electric storage heaters.
Sold Prices
25, Ham Island, Windsor last changed hands on 29th October 2019, selling for £915,000. 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 risen by 11.6% since October 2019.
- Sold Oct 2019£915,000
- Sold Mar 2012£735,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 68 sales of comparable properties within 1.2 kilometres of 25, Ham Island, Windsor since 2013.
Most recently, 36, Friary Road, Staines-Upon-Thames, TW19 5JP, a freehold house, sold at £850,000 on the 22nd August 2025.
Read more about house prices in SL4.
- Sold Aug 2025£850,000 | 5 Bed House36, Friary Road, Staines-Upon-Thames, TW19 5JP36, Friary Road, Staines-Upon-Thames, TW19 5JP
- Sold Jan 2025£850,000 | 5 Bed House16, Ham Island, Windsor, SL4 2JY16, Ham Island, Windsor, SL4 2JY
- Sold May 2024£1,160,000 | 5 Bed House6, Acacia Avenue, Staines-Upon-Thames, TW19 5HD6, Acacia Avenue, Staines-Upon-Thames, TW19 5HD
- Sold Apr 2024£450,000 | 5 Bed House79, Welley Road, Staines-Upon-Thames, TW19 5ER79, Welley Road, Staines-Upon-Thames, TW19 5ER
- Sold Oct 2023£1,030,000 | 5 Bed House45, Ouseley Road, Staines-Upon-Thames, TW19 5JB45, Ouseley Road, Staines-Upon-Thames, TW19 5JB
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 £739,643, ranging from £351,509 to £1,026,377.
- 27 Ham Island
5 Bed House | 38 m | Est. Value: £875,607
- Lock House
3 Bed House | 47 m | Est. Value: £562,594
- 24 Ham Island
5 Bed House | 53 m | Est. Value: £810,567
- 23 Ham Island
3 Bed House | 72 m | Est. Value: £545,714
- 31 Ham Island
5 Bed House | 87 m | Est. Value: £1,026,377
Location Comparison
Our analysis of the public data ranks 25, Ham Island, Windsor as the 10th largest and the 21st most expensive of the 51 addresses on Ham Island, Old Windsor, Windsor, SL4.
Against the SL4 postcode district average, it is £368k more expensive than the typical property.
More reading links
Schools Nearby
- Wraysbury Primary School900 m away
- King's Court First School1.4 km away
- Datchet St Mary's CofE Primary School2.1 km away
- Churchmead Church of England (VA) School2.4 km away
- Ditton Park Academy3.6 km away
- Langley Grammar School4.0 km away
More reading links
Public Transport Nearby
- Sunnymeads|900 m away
- Wraysbury|2.1 km away
- Datchet|2.1 km away
Available Internet Speeds
Ofcom's latest figures show poor internet coverage in this area, which may mean weak or no connectivity.
According to recent data from Ofcom, Slow or No Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a High risk of flooding.












