HM Land Registry records the plot of land for 39, Barns Dene, Harpenden as measuring 796 m².

That makes it the 4th largest plot in the postcode, where all 20 other houses have recorded plot data.

39, Barns Dene, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 04 Jun 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).

The most recent sale of 39, Barns Dene, Harpenden completed on 3rd December 2014 at £1,365,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 5.5% over the period since December 2014.

• Sold Dec 2014£1,365,000
• Sold Feb 2009£670,000

Since 2007 88 properties similar to 39, Barns Dene, Harpenden have sold within a radius of 940 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 26th November 2025, was 22, Hartwell Gardens, Harpenden, AL5 2RW, a freehold house which sold for £1,750,000.

Read more about house prices in AL5.

• Sold Nov 2025£1,750,000 | 5 Bed House22, Hartwell Gardens, Harpenden, AL5 2RW22, Hartwell Gardens, Harpenden, AL5 2RW
• Sold Jan 2025£1,250,000 | 5 Bed House65, Townsend Lane, Harpenden, AL5 2RE65, Townsend Lane, Harpenden, AL5 2RE
• Sold Oct 2024£1,560,000 | 5 Bed House3, Pondwick Road, Harpenden, AL5 2HG3, Pondwick Road, Harpenden, AL5 2HG
• Sold Sep 2024£1,470,000 | 5 Bed House19, Claygate Avenue, Harpenden, AL5 2HE19, Claygate Avenue, Harpenden, AL5 2HE
• Sold Sep 2024£1,835,000 | 5 Bed House8, Hartwell Gardens, Harpenden, AL5 2RW8, Hartwell Gardens, Harpenden, AL5 2RW
• Sold Feb 2024£1,810,001 | 5 Bed House22, Barns Dene, Harpenden, AL5 2HQ22, Barns Dene, Harpenden, AL5 2HQ
• Sold Nov 2023£1,450,000 | 5 Bed House3, Barns Dene, Harpenden, AL5 2HH3, Barns Dene, Harpenden, AL5 2HH
• Sold Aug 2022£1,825,000 | 5 Bed House24, Roundwood Park, Harpenden, AL5 3AF24, Roundwood Park, Harpenden, AL5 3AF
• Sold Jul 2022£1,425,000 | 5 Bed House27, Claygate Avenue, Harpenden, AL5 2HE27, Claygate Avenue, Harpenden, AL5 2HE
• Sold Jun 2022£1,900,000 | 5 Bed House31, Claygate Avenue, Harpenden, AL5 2HE31, Claygate Avenue, Harpenden, AL5 2HE
• Sold Oct 2021£1,490,000 | 5 Bed House12, Barns Dene, Harpenden, AL5 2HQ12, Barns Dene, Harpenden, AL5 2HQ
• Sold Jun 2021£1,525,000 | 5 Bed House29, Barns Dene, Harpenden, AL5 2HH29, Barns Dene, Harpenden, AL5 2HH
• Sold Jan 2021£1,700,000 | 5 Bed House92, Townsend Lane, Harpenden, AL5 2RQ92, Townsend Lane, Harpenden, AL5 2RQ
• Sold Aug 2020£1,089,000 | 5 Bed House12, Broadfields, Harpenden, AL5 2HJ12, Broadfields, Harpenden, AL5 2HJ
• Sold Sep 2017£1,300,000 | 5 Bed House14, Hartwell Gardens, Harpenden, AL5 2RW14, Hartwell Gardens, Harpenden, AL5 2RW
• Sold Sep 2017£1,190,700 | 5 Bed House4, Barns Dene, Harpenden, AL5 2HQ4, Barns Dene, Harpenden, AL5 2HQ
• Sold Aug 2016£1,375,000 | 5 Bed House21, Barns Dene, Harpenden, AL5 2HH21, Barns Dene, Harpenden, AL5 2HH
• Sold Oct 2012£985,000 | 5 Bed House33, Barns Dene, Harpenden, AL5 2HH33, Barns Dene, Harpenden, AL5 2HH
• Sold Mar 2012£975,000 | 5 Bed House7, Claygate Avenue, Harpenden, AL5 2HE7, Claygate Avenue, Harpenden, AL5 2HE
• Sold Aug 2007£962,500 | 5 Bed House4, Claygate Avenue, Harpenden, AL5 2HF4, Claygate Avenue, Harpenden, AL5 2HF

Of the 37 addresses on Barns Dene, Harpenden, AL5, 39, Barns Dene, Harpenden comes out as the 9th largest and the 12th most expensive in our analysis of the public data.

It is also £720k more expensive than the average property across the AL5 district.

• Roundwood Primary School

  300 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

  |

  1.2 km away
• Luton Airport Parkway

  |

  6.4 km away
• Luton

  |

  7.8 km away

The flood risk here is rated Very Low, based on Environment Agency data.