1, Claygate Avenue, Harpenden occupies a 613 m² plot as recorded by HM Land Registry.

All 23 other houses in this postcode have recorded plot sizes, and this one ranks as the 8th largest.

1, Claygate Avenue, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Feb 2024.

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

1, Claygate Avenue, Harpenden last changed hands on 29th May 2024, selling for £1,360,000. 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 dropped by 19.0% since May 2024.

• Sold May 2024£1,360,000
• Sold May 1996£208,000

Land Registry records and our Estate Agent network show 121 sales of comparable properties within 970 metres of 1, Claygate Avenue, Harpenden since 2007.

Most recently, 15, Roundwood Park, Harpenden, AL5 3AB, a freehold house, sold at £1,395,000 on the 5th December 2025.

Read more about house prices in AL5.

• Sold Dec 2025£1,395,000 | 4 Bed House15, Roundwood Park, Harpenden, AL5 3AB15, Roundwood Park, Harpenden, AL5 3AB
• Sold Jul 2025£1,595,000 | 4 Bed House14, Roundwood Park, Harpenden, AL5 3AB14, Roundwood Park, Harpenden, AL5 3AB
• Sold Jul 2025£1,300,000 | 5 Bed House52, Roundwood Lane, Harpenden, AL5 3EP52, Roundwood Lane, Harpenden, AL5 3EP
• Sold Feb 2025£1,325,000 | 4 Bed House3, Townsend Close, Harpenden, AL5 2RF3, Townsend Close, Harpenden, AL5 2RF
• Sold Jan 2025£1,300,000 | 5 Bed House8, How Field, Harpenden, AL5 3AU8, How Field, Harpenden, AL5 3AU
• Sold May 2024£1,260,000 | 4 Bed House6, Barns Dene, Harpenden, AL5 2HQ6, Barns Dene, Harpenden, AL5 2HQ
• 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 Jun 2023£1,453,000 | 4 Bed House4, Medlows, Harpenden, AL5 3AY4, Medlows, Harpenden, AL5 3AY
• 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 Jan 2021£1,220,000 | 4 Bed House16, Barns Dene, Harpenden, AL5 2HQ16, Barns Dene, Harpenden, AL5 2HQ
• Sold Dec 2019£1,080,000 | 4 Bed House20, Hartwell Gardens, Harpenden, AL5 2RW20, Hartwell Gardens, Harpenden, AL5 2RW
• 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 Jul 2015£1,000,000 | 4 Bed House24, Barns Dene, Harpenden, AL5 2HQ24, Barns Dene, Harpenden, AL5 2HQ
• Sold Sep 2007£785,000 | 4 Bed House3, Claygate Avenue, Harpenden, AL5 2HE3, Claygate Avenue, Harpenden, AL5 2HE

Our analysis of the public data ranks 1, Claygate Avenue, Harpenden as the 14th largest and the 14th most expensive of the 27 addresses on Claygate Avenue, Harpenden, AL5.

Against the AL5 postcode district average, it is £439k more expensive than the typical property.

• Roundwood Primary School

  100 m away
• St Nicholas CofE VA Primary School

  900 m away
• Wood End School

  1.1 km away

• Roundwood Park School

  100 m away
• St George's School

  1.2 km away
• Sir John Lawes School

  1.8 km away

• Harpenden

  |

  1.4 km away
• Luton Airport Parkway

  |

  6.2 km away
• Luton

  |

  7.6 km away

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