HM Land Registry records the plot of land for 21, The Close, Harpenden as measuring 341 m².

That makes it the 29th largest plot in the postcode, where 37 of the 42 other houses have recorded plot data.

21, The Close, Harpenden has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 17 Apr 2012.

The property is not 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 21, The Close, Harpenden completed on 8th February 2013 at £371,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 74.5% over the period since February 2013.

• Sold Feb 2013£371,000

Since 2009 84 properties similar to 21, The Close, Harpenden have sold within a radius of 1.5 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 29th July 2025, was 355, Luton Road, Harpenden, AL5 3LZ, a freehold house which sold for £775,000.

Read more about house prices in AL5.

• Sold Jul 2025£775,000 | 3 Bed House355, Luton Road, Harpenden, AL5 3LZ355, Luton Road, Harpenden, AL5 3LZ
• Sold Apr 2025£15,000 | 3 Bed House347, Luton Road, Harpenden, AL5 3LZ347, Luton Road, Harpenden, AL5 3LZ
• Sold Jan 2025£680,000 | 3 Bed House41, Carpenders Close, Harpenden, AL5 3HN41, Carpenders Close, Harpenden, AL5 3HN
• Sold Jan 2025£650,000 | 3 Bed House35, Vale Close, Harpenden, AL5 3LX35, Vale Close, Harpenden, AL5 3LX
• Sold Apr 2024£560,000 | 3 Bed House33, Vale Close, Harpenden, AL5 3LX33, Vale Close, Harpenden, AL5 3LX
• Sold Jan 2024£625,000 | 3 Bed House30, Shepherds Way, Harpenden, AL5 3HF30, Shepherds Way, Harpenden, AL5 3HF
• Sold Dec 2023£640,000 | 3 Bed House20, Kinsbourne Close, Harpenden, AL5 3PB20, Kinsbourne Close, Harpenden, AL5 3PB
• Sold Mar 2023£785,000 | 3 Bed House2, The Close, Harpenden, AL5 3NB2, The Close, Harpenden, AL5 3NB
• Sold Nov 2021£675,000 | 3 Bed House35, Carpenders Close, Harpenden, AL5 3HN35, Carpenders Close, Harpenden, AL5 3HN
• Sold Mar 2021£805,000 | 3 Bed House21, Kinsbourne Close, Harpenden, AL5 3PB21, Kinsbourne Close, Harpenden, AL5 3PB
• Sold Mar 2021£560,000 | 3 Bed House14, Vale Close, Harpenden, AL5 3LX14, Vale Close, Harpenden, AL5 3LX
• Sold Mar 2020£650,000 | 3 Bed House337, Luton Road, Harpenden, AL5 3LW337, Luton Road, Harpenden, AL5 3LW
• Sold Nov 2019£570,000 | 3 Bed House26, Shepherds Way, Harpenden, AL5 3HF26, Shepherds Way, Harpenden, AL5 3HF
• Sold Mar 2018£555,000 | 3 Bed House37, Carpenders Close, Harpenden, AL5 3HN37, Carpenders Close, Harpenden, AL5 3HN
• Sold Sep 2017£625,000 | 3 Bed House30, The Close, Harpenden, AL5 3NB30, The Close, Harpenden, AL5 3NB
• Sold Sep 2017£665,000 | 3 Bed House29, The Close, Harpenden, AL5 3NB29, The Close, Harpenden, AL5 3NB
• Sold Jul 2012£425,000 | 3 Bed House32, The Close, Harpenden, AL5 3NB32, The Close, Harpenden, AL5 3NB
• Sold Jun 2012£440,000 | 3 Bed House9, Shepherds Way, Harpenden, AL5 3HF9, Shepherds Way, Harpenden, AL5 3HF
• Sold Apr 2011£550,000 | 3 Bed House47, Tuffnells Way, Harpenden, AL5 3HA47, Tuffnells Way, Harpenden, AL5 3HA
• Sold Aug 2009£390,000 | 3 Bed House18, Kinsbourne Close, Harpenden, AL5 3PB18, Kinsbourne Close, Harpenden, AL5 3PB

Of the 49 addresses on The Close, Harpenden, AL5, 21, The Close, Harpenden comes out as the 48th largest and the 46th most expensive in our analysis of the public data.

It is also £229k less expensive than the average property across the AL5 district.

• 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

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