Our Data Sources
Flat 48, 1, William Street, Slough has a single entry in the Land Registry from August 2021 and a single entry in the EPC database dated January 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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For Flat 48, 1, William Street, Slough, we estimate a market value of £208,670 and a rental value of £1,205 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £184,822 and £1,068 per month respectively.
Energy Efficiency
Flat 48, 1, William Street, Slough has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 11 Jan 2021.
The property is not connected to mains gas and has high performance glazing. It is heated using Community scheme.
Sold Prices
The most recent sale of Flat 48, 1, William Street, Slough completed on 20th August 2021 at £250,000 and was recorded by HM Land Registry as a leasehold flat.
Since 1995 this is the property's only sale.
Values of comparable properties have dropped by 5.8% over the period since August 2021.
- Sold Aug 2021£250,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to Flat 48, 1, William Street, Slough have sold within a radius of 390 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 28th November 2025, was Flat 126, 26, High Street, Slough, SL1 1ER, a leasehold flat which sold for £170,000.
Read more about house prices in SL1.
- Sold Nov 2025£170,000 | 2 Bed FlatFlat 126, 26, High Street, Slough, SL1 1ERFlat 126, 26, High Street, Slough, SL1 1ER
- Sold May 2025£145,000 | 2 Bed FlatFlat 6, 26, High Street, Slough, SL1 1EPFlat 6, 26, High Street, Slough, SL1 1EP
- Sold Jan 2025£190,000 | 2 Bed FlatFlat 18, Cornwall House 55-57, High Street, Slough, SL1 1DZFlat 18, Cornwall House 55-57, High Street, Slough, SL1 1DZ
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 66 addresses on William Street, Slough, SL1, Flat 48, 1, William Street, Slough comes out as the 35th largest and the 35th most expensive in our analysis of the public data.
It is also £173k less expensive than the average property across the SL1 district.
More reading links
Schools Nearby
- 900mSt Mary's Church of England Primary School
- 1.0kmJames Elliman Academy
- 1.2kmIqra Slough Islamic Primary School
- 800mSlough and Eton Church of England Business and Enterprise College
- 1.2kmSt Joseph's Catholic High School
- 1.3kmLynch Hill Enterprise Academy
More reading links
Public Transport Nearby
- 400mSlough
- 2.8kmWindsor & Eton Riverside
- 3.1kmWindsor & Eton Central
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.












