7, Knowle Drive, Harpenden occupies a 256 m² plot as recorded by HM Land Registry.

Of the 34 other houses in this postcode, 32 have recorded plot sizes, and this one ranks as the 5th largest.

7, Knowle Drive, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 24 May 2017.

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

7, Knowle Drive, Harpenden last changed hands on 20th November 2018, selling for £640,000. 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 50.9% since November 2018.

• Sold Nov 2018£640,000
• Sold Jul 2002£208,000

Land Registry records and our Estate Agent network show 120 sales of comparable properties within 600 metres of 7, Knowle Drive, Harpenden since 2019.

Most recently, 7, Cranbourne Drive, Harpenden, AL5 1RJ, a freehold house, sold at £790,000 on the 17th February 2026.

Read more about house prices in AL5.

• Sold Feb 2026£790,000 | 4 Bed House7, Cranbourne Drive, Harpenden, AL5 1RJ7, Cranbourne Drive, Harpenden, AL5 1RJ
• Sold Nov 2025£760,000 | 4 Bed House51, Cranbourne Drive, Harpenden, AL5 1RJ51, Cranbourne Drive, Harpenden, AL5 1RJ
• Sold Nov 2025£850,000 | 4 Bed House2, Wensley Close, Harpenden, AL5 1RZ2, Wensley Close, Harpenden, AL5 1RZ
• Sold Mar 2025£675,000 | 4 Bed House14, St. Michaels Close, Harpenden, AL5 1EW14, St. Michaels Close, Harpenden, AL5 1EW
• Sold Mar 2025£835,000 | 4 Bed House9, Newton Close, Harpenden, AL5 1SP9, Newton Close, Harpenden, AL5 1SP
• Sold Nov 2024£650,000 | 4 Bed House17D, Grove Avenue, Harpenden, AL5 1EU17D, Grove Avenue, Harpenden, AL5 1EU
• Sold Aug 2024£825,000 | 4 Bed House16, Pipers Avenue, Harpenden, AL5 1HB16, Pipers Avenue, Harpenden, AL5 1HB
• Sold Jul 2024£815,000 | 4 Bed House39, Broadstone Road, Harpenden, AL5 1RD39, Broadstone Road, Harpenden, AL5 1RD
• Sold Jul 2024£925,000 | 4 Bed House54, Broadstone Road, Harpenden, AL5 1RF54, Broadstone Road, Harpenden, AL5 1RF
• Sold Feb 2024£670,000 | 4 Bed House16, Burnsall Place, Harpenden, AL5 1RS16, Burnsall Place, Harpenden, AL5 1RS
• Sold Aug 2023£885,000 | 4 Bed House15, Eastmoor Park, Harpenden, AL5 1BN15, Eastmoor Park, Harpenden, AL5 1BN
• Sold Aug 2023£765,000 | 4 Bed House16, Hawthorn Close, Harpenden, AL5 1HN16, Hawthorn Close, Harpenden, AL5 1HN
• Sold Jan 2023£841,000 | 4 Bed House2, Ravenscroft, Harpenden, AL5 1ST2, Ravenscroft, Harpenden, AL5 1ST
• Sold Sep 2022£750,000 | 4 Bed House5, Ravenscroft, Harpenden, AL5 1ST5, Ravenscroft, Harpenden, AL5 1ST
• Sold Feb 2022£820,000 | 4 Bed House10, Magna Close, Harpenden, AL5 1RH10, Magna Close, Harpenden, AL5 1RH
• Sold Feb 2022£733,000 | 4 Bed House9, Ranleigh Walk, Harpenden, AL5 1SR9, Ranleigh Walk, Harpenden, AL5 1SR
• Sold Jan 2021£680,000 | 4 Bed House75, Coleswood Road, Harpenden, AL5 1EG75, Coleswood Road, Harpenden, AL5 1EG
• Sold May 2020£610,000 | 4 Bed House65, Broadstone Road, Harpenden, AL5 1RE65, Broadstone Road, Harpenden, AL5 1RE
• Sold Sep 2019£710,000 | 4 Bed House6, Magna Close, Harpenden, AL5 1RH6, Magna Close, Harpenden, AL5 1RH
• Sold Jun 2019£622,500 | 4 Bed House10, Knowle Drive, Harpenden, AL5 1RW10, Knowle Drive, Harpenden, AL5 1RW

Our analysis of the public data ranks 7, Knowle Drive, Harpenden as the 2nd largest and the 2nd most expensive of the 34 addresses on Knowle Drive, Harpenden, AL5.

Against the AL5 postcode district average, it is £190k less expensive than the typical property.

• The Grove Infant and Nursery School

  400 m away
• The Grove Junior School

  400 m away
• High Beeches Primary School

  1.0 km away

• Sir John Lawes School

  2.0 km away
• Katherine Warington School

  2.0 km away
• St George's School

  2.2 km away

• Harpenden

  |

  1.4 km away
• St Albans City

  |

  6.1 km away
• St Albans Abbey

  |

  6.7 km away

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