HM Land Registry records the plot of land for 21, Dolphin Road, Slough as measuring 329 m².

That makes it the 3rd largest plot in the postcode, where 3 of the 11 other houses have recorded plot data.

21, Dolphin Road, Slough has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 29 Oct 2013.

The property is not 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 21, Dolphin Road, Slough completed on 1st June 2016 at £520,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 4 times.

Values of comparable properties have risen by 38.5% over the period since June 2016.

• Sold Jun 2016£520,000
• Sold Nov 1996£127,000
• Sold Oct 1996£128,500

Since 2009 53 properties similar to 21, Dolphin Road, Slough have sold within a radius of 540 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 1st September 2025, was 5, Aldin Avenue North, Slough, SL1 1RS, a freehold house which sold for £595,000.

Read more about house prices in SL1.

• Sold Sep 2025£595,000 | 4 Bed House5, Aldin Avenue North, Slough, SL1 1RS5, Aldin Avenue North, Slough, SL1 1RS
• Sold Nov 2023£700,000 | 4 Bed House19, Sussex Place, Slough, SL1 1NH19, Sussex Place, Slough, SL1 1NH
• Sold Oct 2023£600,000 | 4 Bed House19, Foxherne, Slough, SL3 7AR19, Foxherne, Slough, SL3 7AR
• Sold Nov 2022£750,000 | 5 Bed House40, Sussex Place, Slough, SL1 1NR40, Sussex Place, Slough, SL1 1NR
• Sold Aug 2022£545,000 | 4 Bed House27, Uxbridge Road, Slough, SL1 1SN27, Uxbridge Road, Slough, SL1 1SN
• Sold Feb 2021£500,000 | 4 Bed House40, Dolphin Road, Slough, SL1 1TA40, Dolphin Road, Slough, SL1 1TA
• Sold Jan 2021£575,000 | 5 Bed House90, Dolphin Road, Slough, SL1 1TA90, Dolphin Road, Slough, SL1 1TA
• Sold Dec 2020£585,000 | 5 Bed House92, Dolphin Road, Slough, SL1 1TA92, Dolphin Road, Slough, SL1 1TA
• Sold Dec 2020£352,000 | 4 Bed House25, Aldin Avenue South, Slough, SL1 1RR25, Aldin Avenue South, Slough, SL1 1RR
• Sold Sep 2020£548,000 | 4 Bed House37, Denton Way, Slough, SL3 7DJ37, Denton Way, Slough, SL3 7DJ
• Sold Jun 2020£555,000 | 5 Bed House319, High Street, Slough, SL1 1BD319, High Street, Slough, SL1 1BD
• Sold Jun 2020£550,000 | 4 Bed House29, Denton Way, Slough, SL3 7DJ29, Denton Way, Slough, SL3 7DJ
• Sold Sep 2018£550,000 | 4 Bed House50, Sussex Place, Slough, SL1 1NR50, Sussex Place, Slough, SL1 1NR
• Sold Mar 2018£832,500 | 5 Bed House18, Sussex Place, Slough, SL1 1NR18, Sussex Place, Slough, SL1 1NR
• Sold Oct 2014£440,000 | 4 Bed House4, Meyers Close, Slough, SL3 7DS4, Meyers Close, Slough, SL3 7DS
• Sold Oct 2014£440,000 | 4 Bed House2, Meyers Close, Slough, SL3 7DS2, Meyers Close, Slough, SL3 7DS
• Sold Jun 2014£450,000 | 4 Bed House37, Dolphin Road, Slough, SL1 1TG37, Dolphin Road, Slough, SL1 1TG
• Sold Dec 2011£280,000 | 4 Bed House43, Dolphin Road, Slough, SL1 1TG43, Dolphin Road, Slough, SL1 1TG
• Sold Feb 2010£370,000 | 4 Bed House34, Dolphin Road, Slough, SL1 1TD34, Dolphin Road, Slough, SL1 1TD
• Sold Dec 2009£390,000 | 4 Bed House51, Sussex Place, Slough, SL1 1NH51, Sussex Place, Slough, SL1 1NH

Of the 77 addresses on Dolphin Road, Slough, SL1, 21, Dolphin Road, Slough comes out as the 17th largest and the 9th most expensive in our analysis of the public data.

It is also £245k more expensive than the average property across the SL1 district.

• St Mary's Church of England Primary School

  600 m away
• Willow Primary School

  1.0 km away
• Iqra Slough Islamic Primary School

  1.1 km away

• St Bernard's Catholic Grammar School

  300 m away
• Upton Court Grammar School

  300 m away
• Ditton Park Academy

  1.1 km away

• Slough

  |

  1.1 km away
• Langley

  |

  2.5 km away
• Langley (Berks)

  |

  2.5 km away

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