According to data from HM Land Registry, 10, Dell Close, Harpenden sits on a plot of 349 m².

We have plot size data on 12 out of 13 other houses in the postcode and 10, Dell Close, Harpenden sits on the largest plot.

10, Dell Close, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Jul 2023.

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 the Land Registry and our network of Estate Agents, there have been 45 sales of properties similar to 10, Dell Close, Harpenden within a radius of 750 metres since 2007.

The most recent example is 27, Springfield Crescent, Harpenden, AL5 4LG, a freehold house which sold for £585,000 on the 11th December 2025.

Read more about house prices in AL5.

• Sold Dec 2025£585,000 | 3 Bed House27, Springfield Crescent, Harpenden, AL5 4LG27, Springfield Crescent, Harpenden, AL5 4LG
• Sold Dec 2025£268,750 | 3 Bed House2, Dell Close, Harpenden, AL5 4HP2, Dell Close, Harpenden, AL5 4HP
• Sold Jul 2025£506,500 | 3 Bed House9, St. Martins Close, Harpenden, AL5 5JG9, St. Martins Close, Harpenden, AL5 5JG
• Sold Mar 2025£485,000 | 3 Bed House8, Willow Way, Harpenden, AL5 5JF8, Willow Way, Harpenden, AL5 5JF
• Sold Dec 2023£430,000 | 3 Bed House19, St. Martins Close, Harpenden, AL5 5JG19, St. Martins Close, Harpenden, AL5 5JG
• Sold Aug 2022£550,000 | 3 Bed House66, Westfield Road, Harpenden, AL5 4JU66, Westfield Road, Harpenden, AL5 4JU
• Sold Jul 2022£590,000 | 3 Bed House14, Dell Close, Harpenden, AL5 4HP14, Dell Close, Harpenden, AL5 4HP
• Sold Dec 2021£470,000 | 3 Bed House6, Lindley Close, Harpenden, AL5 4HS6, Lindley Close, Harpenden, AL5 4HS
• Sold Jul 2021£480,000 | 3 Bed House4, Hyde View Road, Harpenden, AL5 4NZ4, Hyde View Road, Harpenden, AL5 4NZ
• Sold Jun 2021£540,000 | 3 Bed House18, Dell Close, Harpenden, AL5 4HP18, Dell Close, Harpenden, AL5 4HP
• Sold Apr 2021£498,950 | 3 Bed House1, Lindley Close, Harpenden, AL5 4HS1, Lindley Close, Harpenden, AL5 4HS
• Sold Mar 2021£410,000 | 3 Bed House16, St. Martins Close, Harpenden, AL5 5JG16, St. Martins Close, Harpenden, AL5 5JG
• Sold Dec 2020£435,000 | 3 Bed House12, Willow Way, Harpenden, AL5 5JF12, Willow Way, Harpenden, AL5 5JF
• Sold Aug 2020£465,000 | 3 Bed House15, Lindley Close, Harpenden, AL5 4HS15, Lindley Close, Harpenden, AL5 4HS
• Sold Feb 2020£405,000 | 3 Bed House4 Lindley Court, Lindley Close, Harpenden, AL5 4HT4 Lindley Court, Lindley Close, Harpenden, AL5 4HT
• Sold Apr 2019£490,000 | 3 Bed House9, Lindley Close, Harpenden, AL5 4HS9, Lindley Close, Harpenden, AL5 4HS
• Sold Sep 2017£510,000 | 3 Bed House10, Lindley Close, Harpenden, AL5 4HS10, Lindley Close, Harpenden, AL5 4HS
• Sold Jan 2017£476,000 | 3 Bed House3 Lindley Court, Lindley Close, Harpenden, AL5 4HT3 Lindley Court, Lindley Close, Harpenden, AL5 4HT
• Sold Jul 2012£329,100 | 3 Bed House12, Dell Close, Harpenden, AL5 4HP12, Dell Close, Harpenden, AL5 4HP
• Sold May 2007£275,000 | 3 Bed House22, Dell Close, Harpenden, AL5 4HP22, Dell Close, Harpenden, AL5 4HP

Dell Close, Harpenden, AL5 has a total of 13 addresses. According to our analysis of all the public data, 10, Dell Close, Harpenden is the 12th largest and the 12th most expensive property on the street.

When compared to the postcode district it is £451k less expensive than the average property in AL5.

• The Lea Primary School and Nursery

  400 m away
• Manland Primary School

  500 m away
• St Nicholas CofE VA Primary School

  1.0 km away

• St George's School

  400 m away
• Sir John Lawes School

  600 m away
• Roundwood Park School

  1.5 km away

• Harpenden

  |

  1.2 km away
• Luton Airport Parkway

  |

  6.0 km away
• Luton

  |

  7.5 km away

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