HM Land Registry records the plot of land for 23, Prospect Lane, Harpenden as measuring 1,889 m².

That makes it the largest plot in the postcode, where all 30 other houses have recorded plot data.

23, Prospect Lane, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 20 Sep 2024.

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 23, Prospect Lane, Harpenden completed on 15th November 1996 at £360,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

• Sold Nov 1996£360,000

Since 2012 54 properties similar to 23, Prospect Lane, Harpenden have sold within a radius of 2.2 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 29th October 2025, was 3, Netherfield Road, Harpenden, AL5 2AF, a freehold house which sold for £2,325,000.

Read more about house prices in AL5.

• Sold Oct 2025£2,325,000 | 5 Bed House3, Netherfield Road, Harpenden, AL5 2AF3, Netherfield Road, Harpenden, AL5 2AF
• Sold Aug 2025£2,350,000 | 5 Bed House19, The Uplands, Harpenden, AL5 2PG19, The Uplands, Harpenden, AL5 2PG
• Sold Feb 2025£2,425,000 | 5 Bed House14, High Elms, Harpenden, AL5 2JU14, High Elms, Harpenden, AL5 2JU
• Sold Nov 2024£2,285,000 | 5 Bed House23, The Deerings, Harpenden, AL5 2PF23, The Deerings, Harpenden, AL5 2PF
• Sold Sep 2024£2,200,000 | 5 Bed House5, The Chowns, Harpenden, AL5 2BN5, The Chowns, Harpenden, AL5 2BN
• Sold Sep 2024£2,225,000 | 5 Bed House20A, Oakfield Road, Harpenden, AL5 2NL20A, Oakfield Road, Harpenden, AL5 2NL
• Sold Apr 2024£2,287,000 | 5 Bed House14, Wheatfield Road, Harpenden, AL5 2NY14, Wheatfield Road, Harpenden, AL5 2NY
• Sold Mar 2024£1,750,000 | 5 Bed House14, Hammondswick, Harpenden, AL5 2NR14, Hammondswick, Harpenden, AL5 2NR
• Sold Aug 2023£2,325,000 | 5 Bed House21, West Common Grove, Harpenden, AL5 2AT21, West Common Grove, Harpenden, AL5 2AT
• Sold Nov 2022£2,000,000 | 5 Bed House6, Netherfield Road, Harpenden, AL5 2AG6, Netherfield Road, Harpenden, AL5 2AG
• Sold Sep 2021£2,050,000 | 5 Bed House30, The Uplands, Harpenden, AL5 2NZ30, The Uplands, Harpenden, AL5 2NZ
• Sold Sep 2021£1,650,000 | 5 Bed House18, Prospect Lane, Harpenden, AL5 2PL18, Prospect Lane, Harpenden, AL5 2PL
• Sold Jun 2021£1,975,000 | 5 Bed House17, Hammondswick, Harpenden, AL5 2NR17, Hammondswick, Harpenden, AL5 2NR
• Sold Jun 2021£2,800,000 | 5 Bed House7, Oak Way, Harpenden, AL5 2NT7, Oak Way, Harpenden, AL5 2NT
• Sold Feb 2021£1,850,000 | 5 Bed House11, The Chowns, Harpenden, AL5 2BN11, The Chowns, Harpenden, AL5 2BN
• Sold Dec 2020£1,900,000 | 5 Bed House9, Dellcroft Way, Harpenden, AL5 2NQ9, Dellcroft Way, Harpenden, AL5 2NQ
• Sold Nov 2020£1,625,000 | 5 Bed House30, Penny Croft, Harpenden, AL5 2PB30, Penny Croft, Harpenden, AL5 2PB
• Sold Aug 2015£1,325,000 | 5 Bed House48, The Deerings, Harpenden, AL5 2PE48, The Deerings, Harpenden, AL5 2PE
• Sold Mar 2014£1,650,000 | 5 Bed House43, Prospect Lane, Harpenden, AL5 2PL43, Prospect Lane, Harpenden, AL5 2PL
• Sold Jul 2012£1,065,000 | 5 Bed House9, The Deerings, Harpenden, AL5 2PF9, The Deerings, Harpenden, AL5 2PF

Over the past 2 years our Estate Agent network has recorded 2 lets within 2.2 kilometres of 23, Prospect Lane, Harpenden.

The latest, in April 2025, was 3, Childwick Green, St. Albans, AL3 6JJ, a freehold house let by Collinson Hall.

• 
  Let Apr 2025£ Undisclosed | 2 Bed House3, Childwick Green, St. Albans, AL3 6JJ3, Childwick Green, St. Albans, AL3 6JJ
• 
  Let Jul 2023£ Undisclosed | 2 Bed House1, Childwick Green, St. Albans, AL3 6JJ1, Childwick Green, St. Albans, AL3 6JJ

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Of the 30 addresses on Prospect Lane, Harpenden, AL5, 23, Prospect Lane, Harpenden comes out as the 12th largest and the 12th most expensive in our analysis of the public data.

It is also £1.359m more expensive than the average property across the AL5 district.

• St Dominic Catholic Primary School

  2.3 km away
• The Grove Junior School

  2.5 km away
• The Grove Infant and Nursery School

  2.5 km away

• Townsend Church of England School

  2.5 km away
• Roundwood Park School

  3.1 km away
• St Albans Girls' School

  3.3 km away

• Harpenden

  |

  2.6 km away
• St Albans City

  |

  5.3 km away
• St Albans Abbey

  |

  5.5 km away

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