According to data from HM Land Registry, 21, Diamond Road, Slough sits on a plot of 172 m².

We have plot size data on 31 out of 34 other houses in the postcode and 21, Diamond Road, Slough sits on the 6th largest plot.

21, Diamond Road, Slough has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 04 Apr 2025.

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

According to HM Land Registry, 21, Diamond Road, Slough was last sold on 31st October 2025 for £465,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since October 2025, the market for similar properties has risen by 15.8%.

• Sold Oct 2025£465,000
• Sold Aug 2013£232,500

According to the Land Registry and our network of Estate Agents, there have been 20 sales of properties similar to 21, Diamond Road, Slough within a radius of 490 metres since 2007.

The most recent example is 12, Diamond Road, Slough, SL1 1RX, a freehold house which sold for £420,000 on the 25th February 2026.

Read more about house prices in SL1.

• Sold Feb 2026£420,000 | 4 Bed House12, Diamond Road, Slough, SL1 1RX12, Diamond Road, Slough, SL1 1RX
• Sold Jun 2025£460,000 | 4 Bed House10, Stratfield Road, Slough, SL1 1UW10, Stratfield Road, Slough, SL1 1UW
• Sold May 2024£480,000 | 4 Bed House19, Princes Street, Slough, SL1 1SB19, Princes Street, Slough, SL1 1SB
• Sold Jun 2023£360,000 | 4 Bed House14, Colonial Road, Slough, SL1 1RU14, Colonial Road, Slough, SL1 1RU
• Sold Apr 2022£360,000 | 4 Bed House47, Diamond Road, Slough, SL1 1RT47, Diamond Road, Slough, SL1 1RT
• Sold Jun 2021£412,000 | 4 Bed House28, Princes Street, Slough, SL1 1SB28, Princes Street, Slough, SL1 1SB
• Sold Nov 2019£335,000 | 4 Bed House9, Colonial Road, Slough, SL1 1RU9, Colonial Road, Slough, SL1 1RU
• Sold Jun 2019£465,000 | 4 Bed House53, Wellesley Road, Slough, SL1 1UX53, Wellesley Road, Slough, SL1 1UX
• Sold Sep 2018£450,000 | 4 Bed House34, Wellesley Road, Slough, SL1 1UP34, Wellesley Road, Slough, SL1 1UP
• Sold Aug 2018£480,000 | 4 Bed House9, Uxbridge Road, Slough, SL1 1SN9, Uxbridge Road, Slough, SL1 1SN
• Sold Mar 2018£400,000 | 4 Bed House54, Wexham Road, Slough, SL1 1RN54, Wexham Road, Slough, SL1 1RN
• Sold Apr 2016£460,000 | 4 Bed House7, Uxbridge Road, Slough, SL1 1SN7, Uxbridge Road, Slough, SL1 1SN
• Sold Jan 2014£140,100 | 4 Bed House82, Wellesley Road, Slough, SL1 1UR82, Wellesley Road, Slough, SL1 1UR
• Sold Mar 2013£270,000 | 4 Bed House29, Dolphin Road, Slough, SL1 1TG29, Dolphin Road, Slough, SL1 1TG
• Sold Jan 2012£300,000 | 4 Bed House1, Aldin Avenue North, Slough, SL1 1RS1, Aldin Avenue North, Slough, SL1 1RS
• Sold Jan 2012£300,000 | 4 Bed House3, Aldin Avenue North, Slough, SL1 1RS3, Aldin Avenue North, Slough, SL1 1RS
• Sold Apr 2011£350,000 | 4 Bed House58, Dolphin Road, Slough, SL1 1TA58, Dolphin Road, Slough, SL1 1TA
• Sold Jun 2009£190,000 | 4 Bed House4, Eastbridge, Slough, SL2 5NE4, Eastbridge, Slough, SL2 5NE
• Sold Mar 2007£249,950 | 4 Bed House2, Eastbridge, Slough, SL2 5NE2, Eastbridge, Slough, SL2 5NE
• Sold Feb 2007£248,000 | 4 Bed House5, Eastbridge, Slough, SL2 5NE5, Eastbridge, Slough, SL2 5NE

Diamond Road, Slough, SL1 has a total of 85 addresses. According to our analysis of all the public data, 21, Diamond Road, Slough is the 10th largest and the 11th most expensive property on the street.

When compared to the postcode district it is £87k more expensive than the average property in SL1.

• St Mary's Church of England Primary School

  600 m away
• Willow Primary School

  800 m away
• Iqra Slough Islamic Primary School

  800 m away

• Upton Court Grammar School

  600 m away
• St Bernard's Catholic Grammar School

  600 m away
• St Joseph's Catholic High School

  1.1 km away

• Slough

  |

  800 m away
• Langley

  |

  2.7 km away
• Langley (Berks)

  |

  2.7 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.