According to data from HM Land Registry, 27, Claygate Avenue, Harpenden sits on a plot of 624 m².

We have plot size data on 23 out of 23 other houses in the postcode and 27, Claygate Avenue, Harpenden sits on the 6th largest plot.

27, Claygate Avenue, Harpenden has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 28 Feb 2024.

The property is connected to mains gas and has fully double glazed windows. It is heated using air source heat pump (underfloor, electric).

According to HM Land Registry, 27, Claygate Avenue, Harpenden was last sold on 22nd July 2022 for £1,425,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since July 2022, the market for similar properties has dropped by 29.4%.

According to the Land Registry and our network of Estate Agents, there have been 79 sales of properties similar to 27, Claygate Avenue, Harpenden within a radius of 860 metres since 2007.

The most recent example is 9, Hillside Road, Harpenden, AL5 4BS, a freehold house which sold for £1,650,000 on the 1st June 2026.

Read more about house prices in AL5.

• Sold Jun 2026£1,650,000 | 5 Bed House9, Hillside Road, Harpenden, AL5 4BS9, Hillside Road, Harpenden, AL5 4BS
• Sold Nov 2025£1,750,000 | 5 Bed House22, Hartwell Gardens, Harpenden, AL5 2RW22, Hartwell Gardens, Harpenden, AL5 2RW
• Sold Jun 2025£2,195,000 | 5 Bed House11C, Douglas Road, Harpenden, AL5 2EN11C, Douglas Road, Harpenden, AL5 2EN
• Sold Feb 2024£1,810,001 | 5 Bed House22, Barns Dene, Harpenden, AL5 2HQ22, Barns Dene, Harpenden, AL5 2HQ
• Sold Dec 2022£1,717,500 | 5 Bed House22A, Douglas Road, Harpenden, AL5 2EW22A, Douglas Road, Harpenden, AL5 2EW
• 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£1,392,000 | 5 Bed House12, Roundwood Gardens, Harpenden, AL5 3AJ12, Roundwood Gardens, Harpenden, AL5 3AJ
• 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 Sep 2020£1,440,000 | 5 Bed House27, Townsend Lane, Harpenden, AL5 2QR27, Townsend Lane, Harpenden, AL5 2QR
• Sold Jul 2019£1,650,000 | 5 Bed House37, Moreton End Lane, Harpenden, AL5 2EY37, Moreton End Lane, Harpenden, AL5 2EY
• 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 May 2015£1,320,000 | 5 Bed House19, Broadfields, Harpenden, AL5 2HJ19, Broadfields, Harpenden, AL5 2HJ
• Sold Dec 2014£1,365,000 | 5 Bed House39, Barns Dene, Harpenden, AL5 2HH39, 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

Claygate Avenue, Harpenden, AL5 has a total of 27 addresses. According to our analysis of all the public data, 27, Claygate Avenue, Harpenden is the 5th largest and the 5th most expensive property on the street.

When compared to the postcode district it is £819k more expensive than the average property in AL5.

• 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

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.