According to data from HM Land Registry, 1, The Close, Harpenden sits on a plot of 371 m².

We have plot size data on 37 out of 42 other houses in the postcode and 1, The Close, Harpenden sits on the 24th largest plot.

1, The Close, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 09 May 2024.

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, 1, The Close, Harpenden was last sold on 6th October 2025 for £1,095,000 and was recorded as a freehold house.

The property has had 4 sales since 1995.

Since October 2025, the market for similar properties has risen by 21.9%.

• Sold Oct 2025£1,095,000
• Sold Jul 2015£887,500
• Sold Aug 2009£665,000

According to the Land Registry and our network of Estate Agents, there have been 180 sales of properties similar to 1, The Close, Harpenden within a radius of 1.4 kilometres since 2016.

The most recent example is 7, Carpenders Close, Harpenden, AL5 3HN, a freehold house which sold for £1,200,000 on the 17th October 2025.

Read more about house prices in AL5.

• Sold Oct 2025£1,200,000 | 5 Bed House7, Carpenders Close, Harpenden, AL5 3HN7, Carpenders Close, Harpenden, AL5 3HN
• Sold Oct 2025£1,060,000 | 5 Bed House245, Luton Road, Harpenden, AL5 3DE245, Luton Road, Harpenden, AL5 3DE
• Sold Jan 2025£1,170,000 | 5 Bed House23, Wood End Hill, Harpenden, AL5 3EZ23, Wood End Hill, Harpenden, AL5 3EZ
• Sold Jul 2024£1,200,000 | 4 Bed House49, Tuffnells Way, Harpenden, AL5 3HA49, Tuffnells Way, Harpenden, AL5 3HA
• Sold Jun 2024£920,000 | 4 Bed House26, Carpenders Close, Harpenden, AL5 3HN26, Carpenders Close, Harpenden, AL5 3HN
• Sold May 2024£950,000 | 4 Bed House3, Carpenders Close, Harpenden, AL5 3HN3, Carpenders Close, Harpenden, AL5 3HN
• Sold May 2024£1,005,000 | 4 Bed House14, Ridge Avenue, Harpenden, AL5 3LU14, Ridge Avenue, Harpenden, AL5 3LU
• Sold Mar 2024£935,000 | 4 Bed House1, Shepherds Way, Harpenden, AL5 3HF1, Shepherds Way, Harpenden, AL5 3HF
• Sold Feb 2024£1,000,500 | 5 Bed House69, Derwent Road, Harpenden, AL5 3NY69, Derwent Road, Harpenden, AL5 3NY
• Sold Apr 2023£1,125,000 | 4 Bed House32, Carpenders Close, Harpenden, AL5 3HN32, Carpenders Close, Harpenden, AL5 3HN
• Sold Aug 2022£915,000 | 5 Bed House2, Green Lawns Close, Harpenden, AL5 3QD2, Green Lawns Close, Harpenden, AL5 3QD
• Sold Aug 2022£1,300,000 | 4 Bed House64A, Derwent Road, Harpenden, AL5 3NX64A, Derwent Road, Harpenden, AL5 3NX
• Sold Nov 2021£1,000,000 | 4 Bed House10, Carpenders Close, Harpenden, AL5 3HN10, Carpenders Close, Harpenden, AL5 3HN
• Sold Jun 2021£1,100,000 | 4 Bed House38, Carpenders Close, Harpenden, AL5 3HN38, Carpenders Close, Harpenden, AL5 3HN
• Sold Dec 2020£818,000 | 4 Bed House48, Derwent Road, Harpenden, AL5 3NX48, Derwent Road, Harpenden, AL5 3NX
• Sold Sep 2020£1,050,000 | 5 Bed House28, Miley Close, Harpenden, AL5 3DS28, Miley Close, Harpenden, AL5 3DS
• Sold Mar 2020£890,000 | 4 Bed House15, Crosspaths, Harpenden, AL5 3HB15, Crosspaths, Harpenden, AL5 3HB
• Sold Feb 2020£800,000 | 5 Bed House3, Green Lawns Close, Harpenden, AL5 3QD3, Green Lawns Close, Harpenden, AL5 3QD
• Sold Nov 2019£855,000 | 4 Bed House76, Derwent Road, Harpenden, AL5 3NX76, Derwent Road, Harpenden, AL5 3NX
• Sold Sep 2016£795,000 | 4 Bed House45, Tuffnells Way, Harpenden, AL5 3HA45, Tuffnells Way, Harpenden, AL5 3HA

The Close, Harpenden, AL5 has a total of 49 addresses. According to our analysis of all the public data, 1, The Close, Harpenden is the 9th largest and the 10th most expensive property on the street.

When compared to the postcode district it is £156k more expensive than the average property in AL5.

• Wood End School

  400 m away
• Roundwood Primary School

  1.4 km away
• The Lea Primary School and Nursery

  2.0 km away

• Roundwood Park School

  1.3 km away
• St George's School

  2.2 km away
• Sir John Lawes School

  2.7 km away

• Harpenden

  |

  2.7 km away
• Luton Airport Parkway

  |

  4.8 km away
• Luton

  |

  6.1 km away

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