Our Data Sources
Flat 1, Mercantile House 99-101, Windsor has no records in the the Land Registry and a single entry in the EPC database dated December 2020.
We combine this information with public data 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 Flat 1, Mercantile House 99-101, Windsor would be worth £214,860, with a potential rental value of £1,090 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £190,304, with a rental value of £965 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Energy Efficiency
Flat 1, Mercantile House 99-101, Windsor has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 04 Dec 2020.
The property is not connected to mains gas and has single glazed windows. It is heated using Electric storage heaters.
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 6 sales of comparable properties within 400 metres of Flat 1, Mercantile House 99-101, Windsor across the last 2 years.
Most recently, Flat 11, Ridings House 66-68, Alma Road, Windsor, SL4 3FJ, a leasehold flat, sold at £250,000 on the 2nd April 2026.
Read more about house prices in SL4.
- Sold Apr 2026£250,000 | 1 Bed FlatFlat 11, Ridings House 66-68, Alma Road, Windsor, SL4 3FJFlat 11, Ridings House 66-68, Alma Road, Windsor, SL4 3FJ
- Sold Jan 2026£180,000 | 1 Bed FlatFlat 14, Ridings House 66-68, Alma Road, Windsor, SL4 3FJFlat 14, Ridings House 66-68, Alma Road, Windsor, SL4 3FJ
- Sold Oct 2025£210,000 | 1 Bed FlatFlat 4, Ridings House 66-68, Alma Road, Windsor, SL4 3FJFlat 4, Ridings House 66-68, Alma Road, Windsor, SL4 3FJ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Our analysis of the public data ranks Flat 1, Mercantile House 99-101, Windsor as the 552nd largest and the 562nd most expensive of the 565 addresses on St. Leonards Road, Windsor, SL4.
Against the SL4 postcode district average, it is £378k less expensive than the typical property.
More reading links
Schools Nearby
- The Queen Anne Royal Free CofE Controlled First School500 m away
- Trinity St Stephen CofE Aided First School700 m away
- Oakfield First School800 m away
- The Windsor Boys' School900 m away
- Windsor Girls' School1.3 km away
- Churchmead Church of England (VA) School2.5 km away
More reading links
Public Transport Nearby
- Windsor & Eton Central|700 m away
- Windsor & Eton Riverside|1.1 km away
- Datchet|2.4 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.












