43, Prospect Lane, Harpenden occupies a 1,510 m² plot as recorded by HM Land Registry.

All 30 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.

43, Prospect Lane, Harpenden has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 15 Jun 2026.

The property is connected to mains gas and has fully triple glazed windows. It is heated using portable electric heating assumed for most rooms.

43, Prospect Lane, Harpenden last changed hands on 7th March 2014, selling for £1,650,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 5.4% since March 2014.

• Sold Mar 2014£1,650,000
• Sold Apr 1995£390,000

Land Registry records and our Estate Agent network show 39 sales of comparable properties within 2.1 kilometres of 43, Prospect Lane, Harpenden since 2010.

Most recently, 3, Netherfield Road, Harpenden, AL5 2AF, a freehold house, sold at £2,325,000 on the 29th October 2025.

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 Oct 2025£2,175,000 | 5 Bed House41, The Deerings, Harpenden, AL5 2PF41, The Deerings, Harpenden, AL5 2PF
• Sold Aug 2025£2,350,000 | 5 Bed House19, The Uplands, Harpenden, AL5 2PG19, The Uplands, Harpenden, AL5 2PG
• Sold Jul 2025£2,500,000 | 5 Bed House9, The Uplands, Harpenden, AL5 2PG9, 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£2,282,200 | 5 Bed HouseCedar Lodge, Redbourn Lane, Harpenden, AL5 2NACedar Lodge, Redbourn Lane, Harpenden, AL5 2NA
• 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 Sep 2023£2,740,000 | 5 Bed House17, The Chowns, Harpenden, AL5 2BN17, The Chowns, Harpenden, AL5 2BN
• Sold Nov 2022£2,000,000 | 5 Bed House6, Netherfield Road, Harpenden, AL5 2AG6, Netherfield Road, Harpenden, AL5 2AG
• Sold Feb 2022£2,400,000 | 5 Bed House72, West Common, Harpenden, AL5 2LD72, West Common, Harpenden, AL5 2LD
• Sold Dec 2021£2,185,000 | 5 Bed House1, The Chowns, Harpenden, AL5 2BN1, The Chowns, Harpenden, AL5 2BN
• Sold Jun 2021£1,975,000 | 5 Bed House17, Hammondswick, Harpenden, AL5 2NR17, Hammondswick, Harpenden, AL5 2NR
• Sold Feb 2021£1,850,000 | 5 Bed House11, The Chowns, Harpenden, AL5 2BN11, The Chowns, Harpenden, AL5 2BN
• Sold Dec 2020£2,000,000 | 5 Bed House21, Hawsley Road, Harpenden, AL5 2BL21, Hawsley Road, Harpenden, AL5 2BL
• Sold Aug 2019£1,975,000 | 5 Bed House10, High Elms, Harpenden, AL5 2JU10, High Elms, Harpenden, AL5 2JU
• Sold Jan 2013£1,478,000 | 5 Bed House48, Oakfield Road, Harpenden, AL5 2NS48, Oakfield Road, Harpenden, AL5 2NS
• Sold Jul 2012£1,065,000 | 5 Bed House9, The Deerings, Harpenden, AL5 2PF9, The Deerings, Harpenden, AL5 2PF
• Sold Jul 2010£945,000 | 5 Bed House6, Fairway Close, Harpenden, AL5 2NN6, Fairway Close, Harpenden, AL5 2NN

Agents in our network have reported 2 lettings within 2.1 kilometres of 43, Prospect Lane, Harpenden across the last 2 years.

The newest of these is 3, Childwick Green, St. Albans, AL3 6JJ, a freehold house let by Collinson Hall in April 2025.

• 
  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.

Our analysis of the public data ranks 43, Prospect Lane, Harpenden as the 11th largest and the 13th most expensive of the 30 addresses on Prospect Lane, Harpenden, AL5.

Against the AL5 postcode district average, it is £1.336m more expensive than the typical property.

• 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

Environment Agency data suggests this area has a Very Low risk of flooding.