HM Land Registry records the plot of land for 1, Redbourn Lane, Harpenden as measuring 647 m².

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

1, Redbourn Lane, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 20 Apr 2011.

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 1, Redbourn Lane, Harpenden completed on 29th July 2011 at £886,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 3 times.

Values of comparable properties have risen by 31.2% over the period since July 2011.

• Sold Jul 2011£886,000
• Sold Nov 2002£625,000
• Sold Aug 1999£320,000

Since 2007 61 properties similar to 1, Redbourn Lane, Harpenden have sold within a radius of 1.1 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 2nd February 2026, was 4, Collens Road, Harpenden, AL5 2AJ, a freehold house which sold for £1,322,500.

Read more about house prices in AL5.

• Sold Feb 2026£1,322,500 | 4 Bed House4, Collens Road, Harpenden, AL5 2AJ4, Collens Road, Harpenden, AL5 2AJ
• Sold Aug 2025£1,700,000 | 4 Bed House10, Dellcroft Way, Harpenden, AL5 2NG10, Dellcroft Way, Harpenden, AL5 2NG
• Sold Apr 2025£1,650,000 | 5 Bed House10, The Chowns, Harpenden, AL5 2BN10, The Chowns, Harpenden, AL5 2BN
• Sold Jan 2025£1,400,000 | 4 Bed House27, Barlings Road, Harpenden, AL5 2AW27, Barlings Road, Harpenden, AL5 2AW
• Sold Jun 2024£1,340,000 | 5 Bed House6A, Hatching Green Close, Harpenden, AL5 2LB6A, Hatching Green Close, Harpenden, AL5 2LB
• Sold Dec 2023£1,325,000 | 4 Bed House16, Collens Road, Harpenden, AL5 2AJ16, Collens Road, Harpenden, AL5 2AJ
• Sold Feb 2023£1,950,000 | 4 Bed House18, East Common, Harpenden, AL5 1BJ18, East Common, Harpenden, AL5 1BJ
• Sold Nov 2022£1,440,000 | 4 Bed House5, Hatching Green Close, Harpenden, AL5 2LB5, Hatching Green Close, Harpenden, AL5 2LB
• Sold Jun 2022£1,300,000 | 4 Bed House4A, Hatching Green Close, Harpenden, AL5 2LB4A, Hatching Green Close, Harpenden, AL5 2LB
• Sold Jun 2022£1,350,000 | 4 Bed House7, Geescroft Walk, Harpenden, AL5 2GX7, Geescroft Walk, Harpenden, AL5 2GX
• Sold Feb 2022£1,087,500 | 4 Bed House8, Geescroft Walk, Harpenden, AL5 2GX8, Geescroft Walk, Harpenden, AL5 2GX
• Sold Sep 2021£1,220,000 | 4 Bed House23A, East Common, Harpenden, AL5 1BJ23A, East Common, Harpenden, AL5 1BJ
• Sold Mar 2021£1,010,000 | 5 Bed House8, Gibbs Close, Harpenden, AL5 1FA8, Gibbs Close, Harpenden, AL5 1FA
• Sold Feb 2021£1,100,000 | 5 Bed House9, Gibbs Close, Harpenden, AL5 1FA9, Gibbs Close, Harpenden, AL5 1FA
• Sold Jun 2018£1,060,000 | 4 Bed House19, Manor Close, Harpenden, AL5 2GT19, Manor Close, Harpenden, AL5 2GT
• Sold Oct 2016£1,300,000 | 5 Bed House6, Hatching Green Close, Harpenden, AL5 2LB6, Hatching Green Close, Harpenden, AL5 2LB
• Sold Jul 2016£975,000 | 4 Bed House9, Geescroft Walk, Harpenden, AL5 2GX9, Geescroft Walk, Harpenden, AL5 2GX
• Sold Apr 2012£915,000 | 4 Bed House4, Geescroft Walk, Harpenden, AL5 2GX4, Geescroft Walk, Harpenden, AL5 2GX
• Sold Aug 2011£780,000 | 4 Bed House6, Geescroft Walk, Harpenden, AL5 2GX6, Geescroft Walk, Harpenden, AL5 2GX
• Sold Jun 2007£835,000 | 5 Bed House1, Geescroft Walk, Harpenden, AL5 2GX1, Geescroft Walk, Harpenden, AL5 2GX

Of the 29 addresses on Redbourn Lane, Harpenden, AL5, 1, Redbourn Lane, Harpenden comes out as the 19th largest and the 19th most expensive in our analysis of the public data.

It is also £467k more expensive than the average property across the AL5 district.

• St Dominic Catholic Primary School

  900 m away
• The Grove Junior School

  1.3 km away
• Harpenden Academy

  1.3 km away

• St George's School

  2.1 km away
• Roundwood Park School

  2.2 km away
• Sir John Lawes School

  2.2 km away

• Harpenden

  |

  1.2 km away
• St Albans City

  |

  6.2 km away
• St Albans Abbey

  |

  6.6 km away

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