HM Land Registry records the plot of land for 3, Castle Street, Slough as measuring 85 m².

That makes it the 9th largest plot in the postcode, where all 13 other houses have recorded plot data.

3, Castle Street, Slough has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 02 Oct 2020.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

The most recent sale of 3, Castle Street, Slough completed on 8th October 2021 at £336,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 19.4% over the period since October 2021.

• Sold Oct 2021£336,000

Since 2012 45 properties similar to 3, Castle Street, Slough have sold within a radius of 430 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 28th August 2025, was 25, Park Street, Slough, SL1 1PS, a freehold house which sold for £395,000.

Read more about house prices in SL1.

• Sold Aug 2025£395,000 | 3 Bed House25, Park Street, Slough, SL1 1PS25, Park Street, Slough, SL1 1PS
• Sold Jul 2025£386,000 | 3 Bed House8, Hencroft Street North, Slough, SL1 1RD8, Hencroft Street North, Slough, SL1 1RD
• Sold Jul 2025£345,000 | 3 Bed House100A, Park Street, Slough, SL1 1PU100A, Park Street, Slough, SL1 1PU
• Sold Jun 2025£400,000 | 3 Bed House37, Alpha Street North, Slough, SL1 1RA37, Alpha Street North, Slough, SL1 1RA
• Sold May 2024£405,000 | 3 Bed House59, Alpha Street South, Slough, SL1 1QZ59, Alpha Street South, Slough, SL1 1QZ
• Sold Sep 2023£620,000 | 3 Bed House2, Upton Court Road, Slough, SL3 7LX2, Upton Court Road, Slough, SL3 7LX
• Sold Sep 2023£383,000 | 3 Bed House70, Hencroft Street South, Slough, SL1 1RE70, Hencroft Street South, Slough, SL1 1RE
• Sold Jul 2023£350,000 | 4 Bed House117, Upton Road, Slough, SL1 2AE117, Upton Road, Slough, SL1 2AE
• Sold Mar 2022£360,000 | 3 Bed House15, Herschel Street, Slough, SL1 1PB15, Herschel Street, Slough, SL1 1PB
• Sold Feb 2022£370,000 | 3 Bed House61, Alpha Street South, Slough, SL1 1QZ61, Alpha Street South, Slough, SL1 1QZ
• Sold Jan 2022£380,000 | 3 Bed House2, St. Laurence Way, Slough, SL1 2BW2, St. Laurence Way, Slough, SL1 2BW
• Sold Apr 2021£390,000 | 4 Bed House92, Hencroft Street South, Slough, SL1 1RE92, Hencroft Street South, Slough, SL1 1RE
• Sold Jul 2020£345,000 | 3 Bed House28, Hencroft Street North, Slough, SL1 1RD28, Hencroft Street North, Slough, SL1 1RD
• Sold Mar 2019£385,000 | 3 Bed House85, Alpha Street South, Slough, SL1 1QZ85, Alpha Street South, Slough, SL1 1QZ
• Sold Feb 2019£390,000 | 3 Bed House85, Park Street, Slough, SL1 1PX85, Park Street, Slough, SL1 1PX
• Sold Dec 2015£255,000 | 3 Bed House62, Park Street, Slough, SL1 1PS62, Park Street, Slough, SL1 1PS
• Sold Jun 2015£256,000 | 3 Bed House13, Castle Street, Slough, SL1 2AX13, Castle Street, Slough, SL1 2AX
• Sold May 2014£212,000 | 3 Bed House28, Park Street, Slough, SL1 1PS28, Park Street, Slough, SL1 1PS
• Sold May 2013£197,000 | 3 Bed House57, Alpha Street South, Slough, SL1 1QZ57, Alpha Street South, Slough, SL1 1QZ
• Sold Apr 2012£222,000 | 3 Bed House65, Alpha Street South, Slough, SL1 1QZ65, Alpha Street South, Slough, SL1 1QZ

Of the 13 addresses on Castle Street, Slough, SL1, 3, Castle Street, Slough comes out as the largest and the most expensive in our analysis of the public data.

It is also £27k more expensive than the average property across the SL1 district.

• St Mary's Church of England Primary School

  300 m away
• Willow Primary School

  1.5 km away
• Iqra Slough Islamic Primary School

  1.5 km away

• Upton Court Grammar School

  800 m away
• Slough and Eton Church of England Business and Enterprise College

  1.0 km away
• St Bernard's Catholic Grammar School

  1.1 km away

• Slough

  |

  900 m away
• Windsor & Eton Riverside

  |

  2.3 km away
• Datchet

  |

  2.4 km away

The flood risk here is rated Very Low, based on Environment Agency data.