According to data from HM Land Registry, 35, Claygate Avenue, Harpenden sits on a plot of 479 m².

We have plot size data on 23 out of 23 other houses in the postcode and 35, Claygate Avenue, Harpenden sits on the 22nd largest plot.

35, Claygate Avenue, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 Feb 2015.

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

According to HM Land Registry, 35, Claygate Avenue, Harpenden was last sold on 14th August 2015 for £950,000 and was recorded as a freehold house.

The property has had 3 sales since 1995.

Since August 2015, the market for similar properties has risen by 0.8%.

• Sold Aug 2015£950,000
• Sold Sep 2007£720,000
• Sold Dec 1998£250,000

According to the Land Registry and our network of Estate Agents, there have been 120 sales of properties similar to 35, Claygate Avenue, Harpenden within a radius of 830 metres since 2015.

The most recent example is 3, How Field, Harpenden, AL5 3AU, a freehold house which sold for £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 Jul 2025£1,595,000 | 4 Bed House14, Roundwood Park, Harpenden, AL5 3AB14, Roundwood Park, Harpenden, AL5 3AB
• 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 Jan 2025£1,150,000 | 4 Bed House16, Broadfields, Harpenden, AL5 2HJ16, Broadfields, Harpenden, AL5 2HJ
• 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£975,000 | 4 Bed House1, Roundwood Gardens, Harpenden, AL5 3AJ1, Roundwood Gardens, Harpenden, AL5 3AJ
• Sold Aug 2023£1,515,000 | 4 Bed House8, Barns Dene, Harpenden, AL5 2HQ8, Barns Dene, Harpenden, AL5 2HQ
• Sold Feb 2023£1,425,000 | 4 Bed House9, Barns Dene, Harpenden, AL5 2HH9, Barns Dene, Harpenden, AL5 2HH
• Sold Oct 2022£1,840,000 | 4 Bed House10, Pondwick Road, Harpenden, AL5 2HG10, Pondwick Road, Harpenden, AL5 2HG
• Sold Apr 2022£1,465,000 | 4 Bed House14, Barns Dene, Harpenden, AL5 2HQ14, Barns Dene, Harpenden, AL5 2HQ
• 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 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 Jul 2015£1,000,000 | 4 Bed House24, Barns Dene, Harpenden, AL5 2HQ24, Barns Dene, Harpenden, AL5 2HQ
• Sold May 2015£920,000 | 4 Bed House26, Barns Dene, Harpenden, AL5 2HQ26, Barns Dene, Harpenden, AL5 2HQ

Claygate Avenue, Harpenden, AL5 has a total of 27 addresses. According to our analysis of all the public data, 35, Claygate Avenue, Harpenden is the 17th largest and the 17th most expensive property on the street.

When compared to the postcode district it is £342k 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.