24, Barns Dene, Harpenden occupies a 630 m² plot as recorded by HM Land Registry.

All 17 other houses in this postcode have recorded plot sizes, and this one ranks as the 11th largest.

24, Barns Dene, Harpenden has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 19 Sep 2014.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

24, Barns Dene, Harpenden last changed hands on 7th July 2015, selling for £1,000,000. 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 3.0% since July 2015.

• Sold Jul 2015£1,000,000
• Sold Jun 2004£595,000

Land Registry records and our Estate Agent network show 99 sales of comparable properties within 910 metres of 24, Barns Dene, Harpenden since 2011.

Most recently, 3, How Field, Harpenden, AL5 3AU, a freehold house, sold at £1,150,000 on the 17th December 2025.

Read more about house prices in AL5.

• Sold Dec 2025£1,150,000 | 4 Bed House3, How Field, Harpenden, AL5 3AU3, How Field, Harpenden, AL5 3AU
• Sold Jun 2025£1,445,000 | 4 Bed House86, Townsend Lane, Harpenden, AL5 2RQ86, Townsend Lane, Harpenden, AL5 2RQ
• Sold Feb 2025£1,325,000 | 4 Bed House3, Townsend Close, Harpenden, AL5 2RF3, Townsend Close, Harpenden, AL5 2RF
• Sold May 2024£1,360,000 | 4 Bed House1, Claygate Avenue, Harpenden, AL5 2HE1, Claygate Avenue, Harpenden, AL5 2HE
• Sold Jan 2024£1,500,000 | 4 Bed House11B, Douglas Road, Harpenden, AL5 2EN11B, Douglas Road, Harpenden, AL5 2EN
• Sold Aug 2023£1,515,000 | 4 Bed House8, Barns Dene, Harpenden, AL5 2HQ8, Barns Dene, Harpenden, AL5 2HQ
• Sold Feb 2023£1,355,000 | 4 Bed House6, Medlows, Harpenden, AL5 3AY6, Medlows, Harpenden, AL5 3AY
• Sold Feb 2023£1,425,000 | 4 Bed House9, Barns Dene, Harpenden, AL5 2HH9, Barns Dene, Harpenden, AL5 2HH
• Sold Apr 2022£1,465,000 | 4 Bed House14, Barns Dene, Harpenden, AL5 2HQ14, Barns Dene, Harpenden, AL5 2HQ
• Sold Mar 2021£1,283,750 | 4 Bed House11, Hartwell Gardens, Harpenden, AL5 2RW11, Hartwell Gardens, Harpenden, AL5 2RW
• Sold Feb 2021£1,065,000 | 4 Bed House6, Broadfields, Harpenden, AL5 2HJ6, Broadfields, Harpenden, AL5 2HJ
• Sold Jan 2021£1,220,000 | 4 Bed House16, Barns Dene, Harpenden, AL5 2HQ16, Barns Dene, Harpenden, AL5 2HQ
• Sold Dec 2020£868,000 | 4 Bed House17B, Douglas Road, Harpenden, AL5 2EN17B, Douglas Road, Harpenden, AL5 2EN
• Sold Dec 2019£1,080,000 | 4 Bed House20, Hartwell Gardens, Harpenden, AL5 2RW20, Hartwell Gardens, Harpenden, AL5 2RW
• Sold Sep 2019£900,000 | 4 Bed House11, Claygate Avenue, Harpenden, AL5 2HE11, Claygate Avenue, Harpenden, AL5 2HE
• Sold Oct 2018£1,150,000 | 4 Bed House5, Claygate Avenue, Harpenden, AL5 2HE5, Claygate Avenue, Harpenden, AL5 2HE
• Sold Nov 2017£1,100,000 | 4 Bed House35, Barns Dene, Harpenden, AL5 2HH35, Barns Dene, Harpenden, AL5 2HH
• Sold Aug 2015£950,000 | 4 Bed House35, Claygate Avenue, Harpenden, AL5 2HE35, Claygate Avenue, Harpenden, AL5 2HE
• Sold May 2015£920,000 | 4 Bed House26, Barns Dene, Harpenden, AL5 2HQ26, Barns Dene, Harpenden, AL5 2HQ
• Sold Aug 2011£810,502 | 4 Bed House10, Barns Dene, Harpenden, AL5 2HQ10, Barns Dene, Harpenden, AL5 2HQ

Our analysis of the public data ranks 24, Barns Dene, Harpenden as the 30th largest and the 28th most expensive of the 37 addresses on Barns Dene, Harpenden, AL5.

Against the AL5 postcode district average, it is £395k more expensive than the typical property.

• Roundwood Primary School

  200 m away
• St Nicholas CofE VA Primary School

  800 m away
• Harpenden Academy

  1.1 km away

• Roundwood Park School

  300 m away
• St George's School

  1.2 km away
• Sir John Lawes School

  1.7 km away

• Harpenden

  |

  1.3 km away
• Luton Airport Parkway

  |

  6.4 km away
• Luton

  |

  7.8 km away

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