Our Data Sources
Flat 1, 1, William Street, Windsor has a single entry in the Land Registry from August 2012 and a single entry in the EPC database dated July 2022.
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
In very good condition, we estimate Flat 1, 1, William Street, Windsor would be worth £399,582, with a potential rental value of £1,698 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £353,916, with a rental value of £1,504 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 1, 1, William Street, Windsor has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 22 Jul 2022.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and underfloor heating (mains gas).
Sold Prices
Flat 1, 1, William Street, Windsor last changed hands on 8th August 2012, selling for £250,000. The transaction was logged as a leasehold flat by HM Land Registry.
That is its only recorded sale since 1995.
The market for similar properties has risen by 19.5% since August 2012.
- Sold Aug 2012£250,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 35 sales of comparable properties within 440 metres of Flat 1, 1, William Street, Windsor since 2008.
Most recently, Flat 1, Templars Hall 20, St. Leonards Road, Windsor, SL4 3BU, a leasehold flat, sold at £515,000 on the 5th February 2026.
Read more about house prices in SL4.
- Sold Feb 2026£515,000 | 2 Bed FlatFlat 1, Templars Hall 20, St. Leonards Road, Windsor, SL4 3BUFlat 1, Templars Hall 20, St. Leonards Road, Windsor, SL4 3BU
- Sold Jul 2025£275,000 | 2 Bed FlatFlat 1, 87, Grove Road, Windsor, SL4 1HTFlat 1, 87, Grove Road, Windsor, SL4 1HT
- Sold Feb 2025£400,000 | 2 Bed Flat10B, High Street, Windsor, SL4 1LD10B, High Street, Windsor, SL4 1LD
- Sold Jun 2024£1,042,000 | 2 Bed Flat6A, Peascod Street, Windsor, SL4 1DT6A, Peascod Street, Windsor, SL4 1DT
- Sold May 2024£442,500 | 2 Bed FlatFlat 2, Templars Hall 20, St. Leonards Road, Windsor, SL4 3BUFlat 2, Templars Hall 20, St. Leonards Road, Windsor, SL4 3BU
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 £333,607, ranging from £270,156 to £487,805.
- Flat 4, 1 William Street
2 Bed Flat | 0 m | Est. Value: £344,573
- The Penthouse
3 Bed Flat | 0 m | Est. Value: £441,320
- Flat 3, 1 William Street
3 Bed Flat | 0 m | Est. Value: £387,935
- Flat 2, 1 William Street
2 Bed Flat | 0 m | Est. Value: £341,720
- Flat 4, Mulberry House 3 William Street
2 Bed Flat | 6 m | Est. Value: £277,197
Location Comparison
Our analysis of the public data ranks Flat 1, 1, William Street, Windsor as the 4th largest and the 4th most expensive of the 24 addresses on William Street, Windsor, SL4.
Against the SL4 postcode district average, it is £202k less expensive than the typical property.
More reading links
Schools Nearby
- Trinity St Stephen CofE Aided First School600 m away
- The Queen Anne Royal Free CofE Controlled First School800 m away
- Eton Porny CofE First School1.0 km away
- The Windsor Boys' School700 m away
- Windsor Girls' School1.6 km away
- Churchmead Church of England (VA) School2.2 km away
More reading links
Public Transport Nearby
- Windsor & Eton Central|300 m away
- Windsor & Eton Riverside|600 m away
- Datchet|2.2 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
