21, The Cleave, Harpenden occupies a 166 m² plot as recorded by HM Land Registry.

All 26 other houses in this postcode have recorded plot sizes, and this one ranks as the 23rd largest.

21, The Cleave, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 May 2009.

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

21, The Cleave, Harpenden last changed hands on 29th June 2007, selling for £310,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold 3 times since 1995.

The market for similar properties has risen by 90.5% since June 2007.

• Sold Jun 2007£310,000
• Sold Mar 2002£180,000
• Sold Mar 1996£78,000

Land Registry records and our Estate Agent network show 95 sales of comparable properties within 710 metres of 21, The Cleave, Harpenden since 2018.

Most recently, 4, Brampton Close, Harpenden, AL5 5SL, a freehold house, sold at £550,000 on the 19th February 2026.

Read more about house prices in AL5.

• Sold Feb 2026£550,000 | 3 Bed House4, Brampton Close, Harpenden, AL5 5SL4, Brampton Close, Harpenden, AL5 5SL
• Sold Nov 2025£595,000 | 3 Bed House20, Thornbury, Harpenden, AL5 5SN20, Thornbury, Harpenden, AL5 5SN
• Sold Oct 2025£645,000 | 3 Bed House4, Altwood, Harpenden, AL5 5RU4, Altwood, Harpenden, AL5 5RU
• Sold Sep 2025£525,000 | 3 Bed House13, Fairfield Close, Harpenden, AL5 5RZ13, Fairfield Close, Harpenden, AL5 5RZ
• Sold Jul 2025£385,000 | 3 Bed House17, Ashwell Park, Harpenden, AL5 5SG17, Ashwell Park, Harpenden, AL5 5SG
• Sold May 2025£565,000 | 3 Bed House29, The Cleave, Harpenden, AL5 5SJ29, The Cleave, Harpenden, AL5 5SJ
• Sold Mar 2025£555,000 | 3 Bed House7, Englehurst, Harpenden, AL5 5SQ7, Englehurst, Harpenden, AL5 5SQ
• Sold Mar 2025£570,000 | 3 Bed House3, Englehurst, Harpenden, AL5 5SQ3, Englehurst, Harpenden, AL5 5SQ
• Sold Mar 2025£638,500 | 3 Bed House2, Englehurst, Harpenden, AL5 5SQ2, Englehurst, Harpenden, AL5 5SQ
• Sold Jan 2025£575,000 | 3 Bed House15, Wendover Close, Harpenden, AL5 5SH15, Wendover Close, Harpenden, AL5 5SH
• Sold Aug 2023£595,000 | 3 Bed House15, The Cleave, Harpenden, AL5 5SJ15, The Cleave, Harpenden, AL5 5SJ
• Sold Aug 2023£575,000 | 3 Bed House31, The Cleave, Harpenden, AL5 5SJ31, The Cleave, Harpenden, AL5 5SJ
• Sold May 2023£530,000 | 3 Bed House13, Wendover Close, Harpenden, AL5 5SH13, Wendover Close, Harpenden, AL5 5SH
• Sold Jun 2022£625,000 | 3 Bed House21, Fairfield Close, Harpenden, AL5 5RZ21, Fairfield Close, Harpenden, AL5 5RZ
• Sold Jun 2021£545,000 | 3 Bed House12, The Cleave, Harpenden, AL5 5SJ12, The Cleave, Harpenden, AL5 5SJ
• Sold Jun 2021£472,000 | 3 Bed House15, Fairfield Close, Harpenden, AL5 5RZ15, Fairfield Close, Harpenden, AL5 5RZ
• Sold Feb 2021£540,000 | 3 Bed House16, The Cleave, Harpenden, AL5 5SJ16, The Cleave, Harpenden, AL5 5SJ
• Sold Dec 2020£471,000 | 3 Bed House6, Brampton Close, Harpenden, AL5 5SL6, Brampton Close, Harpenden, AL5 5SL
• Sold Jul 2020£470,000 | 3 Bed House19, The Cleave, Harpenden, AL5 5SJ19, The Cleave, Harpenden, AL5 5SJ
• Sold Jun 2018£491,000 | 3 Bed House17, The Cleave, Harpenden, AL5 5SJ17, The Cleave, Harpenden, AL5 5SJ

Our analysis of the public data ranks 21, The Cleave, Harpenden as the 20th largest and the 21st most expensive of the 26 addresses on The Cleave, Harpenden, AL5.

Against the AL5 postcode district average, it is £391k less expensive than the typical property.

• High Beeches Primary School

  100 m away
• Crabtree Infants' School

  300 m away
• Crabtree Junior School

  300 m away

• Katherine Warington School

  1.0 km away
• Sir John Lawes School

  1.1 km away
• St George's School

  1.4 km away

• Harpenden

  |

  1.0 km away
• St Albans City

  |

  7.1 km away
• Luton Airport Parkway

  |

  7.7 km away

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