21, Kinsbourne Close, Harpenden occupies a 439 m² plot as recorded by HM Land Registry.

Of the 27 other houses in this postcode, 22 have recorded plot sizes, and this one ranks as the 2nd largest.

21, Kinsbourne Close, Harpenden has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 20 Feb 2017.

The property is connected to mains gas and has fully double glazed windows. It is heated using warm air (mains gas).

21, Kinsbourne Close, Harpenden last changed hands on 29th March 2021, selling for £805,000. 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 17.4% since March 2021.

• Sold Mar 2021£805,000
• Sold Oct 2017£525,000

Land Registry records and our Estate Agent network show 111 sales of comparable properties within 1.6 kilometres of 21, Kinsbourne Close, Harpenden since 2017.

Most recently, 355, Luton Road, Harpenden, AL5 3LZ, a freehold house, sold at £775,000 on the 29th July 2025.

Read more about house prices in AL5.

• Sold Jul 2025£775,000 | 3 Bed House355, Luton Road, Harpenden, AL5 3LZ355, Luton Road, Harpenden, AL5 3LZ
• Sold Jul 2025£635,000 | 4 Bed House25, Greatfield Close, Harpenden, AL5 3HP25, Greatfield Close, Harpenden, AL5 3HP
• Sold Apr 2025£15,000 | 3 Bed House347, Luton Road, Harpenden, AL5 3LZ347, Luton Road, Harpenden, AL5 3LZ
• Sold Jan 2025£680,000 | 3 Bed House41, Carpenders Close, Harpenden, AL5 3HN41, Carpenders Close, Harpenden, AL5 3HN
• Sold Jan 2025£650,000 | 3 Bed House35, Vale Close, Harpenden, AL5 3LX35, Vale Close, Harpenden, AL5 3LX
• Sold Apr 2024£560,000 | 3 Bed House33, Vale Close, Harpenden, AL5 3LX33, Vale Close, Harpenden, AL5 3LX
• Sold Jan 2024£625,000 | 3 Bed House30, Shepherds Way, Harpenden, AL5 3HF30, Shepherds Way, Harpenden, AL5 3HF
• Sold Dec 2023£685,000 | 3 Bed House31, Carpenders Close, Harpenden, AL5 3HN31, Carpenders Close, Harpenden, AL5 3HN
• Sold Dec 2023£640,000 | 3 Bed House20, Kinsbourne Close, Harpenden, AL5 3PB20, Kinsbourne Close, Harpenden, AL5 3PB
• Sold Mar 2023£785,000 | 3 Bed House2, The Close, Harpenden, AL5 3NB2, The Close, Harpenden, AL5 3NB
• Sold Nov 2022£855,000 | 4 Bed House7, Kinsbourne Close, Harpenden, AL5 3PB7, Kinsbourne Close, Harpenden, AL5 3PB
• Sold Nov 2022£817,500 | 4 Bed House1, Kinsbourne Close, Harpenden, AL5 3PB1, Kinsbourne Close, Harpenden, AL5 3PB
• Sold Nov 2021£675,000 | 3 Bed House35, Carpenders Close, Harpenden, AL5 3HN35, Carpenders Close, Harpenden, AL5 3HN
• Sold Aug 2021£597,000 | 3 Bed House45, Vale Close, Harpenden, AL5 3LX45, Vale Close, Harpenden, AL5 3LX
• Sold Nov 2019£570,000 | 3 Bed House26, Shepherds Way, Harpenden, AL5 3HF26, Shepherds Way, Harpenden, AL5 3HF
• Sold Oct 2019£515,000 | 3 Bed House1, Chapel Court 437, Luton Road, Harpenden, AL5 3QE1, Chapel Court 437, Luton Road, Harpenden, AL5 3QE
• Sold Jul 2019£665,000 | 3 Bed House33, The Close, Harpenden, AL5 3NB33, The Close, Harpenden, AL5 3NB
• Sold Mar 2018£555,000 | 3 Bed House37, Carpenders Close, Harpenden, AL5 3HN37, Carpenders Close, Harpenden, AL5 3HN
• Sold Sep 2017£625,000 | 3 Bed House30, The Close, Harpenden, AL5 3NB30, The Close, Harpenden, AL5 3NB
• Sold Sep 2017£665,000 | 3 Bed House29, The Close, Harpenden, AL5 3NB29, The Close, Harpenden, AL5 3NB

Our analysis of the public data ranks 21, Kinsbourne Close, Harpenden as the 24th largest and the 24th most expensive of the 29 addresses on Kinsbourne Close, Harpenden, AL5.

Against the AL5 postcode district average, it is £264k less expensive than the typical property.

• Wood End School

  500 m away
• Roundwood Primary School

  1.5 km away
• The Lea Primary School and Nursery

  2.1 km away

• Roundwood Park School

  1.4 km away
• St George's School

  2.3 km away
• Sir John Lawes School

  2.8 km away

• Harpenden

  |

  2.8 km away
• Luton Airport Parkway

  |

  4.7 km away
• Luton

  |

  6.1 km away

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