HM Land Registry records the plot of land for 5, Claygate Avenue, Harpenden as measuring 680 m².

That makes it the 3rd largest plot in the postcode, where all 23 other houses have recorded plot data.

5, Claygate Avenue, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Jan 2016.

The property is 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 5, Claygate Avenue, Harpenden completed on 11th October 2018 at £1,150,000 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 6.0% over the period since October 2018.

• Sold Oct 2018£1,150,000
• Sold Sep 2015£980,000

Since 2015 106 properties similar to 5, Claygate Avenue, Harpenden have sold within a radius of 960 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 17th December 2025, was 3, How Field, Harpenden, AL5 3AU, a freehold house which sold for £1,150,000.

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 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£1,355,000 | 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 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 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 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 May 2015£920,000 | 4 Bed House26, Barns Dene, Harpenden, AL5 2HQ26, Barns Dene, Harpenden, AL5 2HQ

Of the 27 addresses on Claygate Avenue, Harpenden, AL5, 5, Claygate Avenue, Harpenden comes out as the 19th largest and the 19th most expensive in our analysis of the public data.

It is also £331k more expensive than the average property across the AL5 district.

• 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

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