HM Land Registry records the plot of land for 3, How Field, Harpenden as measuring 462 m².

That makes it the 6th largest plot in the postcode, where all 12 other houses have recorded plot data.

3, How Field, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 25 Oct 2023.

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 3, How Field, Harpenden completed on 17th December 2025 at £1,150,000 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 1.9% over the period since December 2025.

• Sold Dec 2025£1,150,000

Since 2010 174 properties similar to 3, How Field, Harpenden have sold within a radius of 850 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 31st October 2025, was 12, Lambourn Gardens, Harpenden, AL5 4DQ, a freehold house which sold for £1,290,000.

Read more about house prices in AL5.

• Sold Oct 2025£1,290,000 | 4 Bed House12, Lambourn Gardens, Harpenden, AL5 4DQ12, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Sep 2025£1,055,000 | 4 Bed House73, Park Rise, Harpenden, AL5 3AN73, Park Rise, Harpenden, AL5 3AN
• 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 2023£1,010,000 | 4 Bed House37, Ridgewood Drive, Harpenden, AL5 3LJ37, Ridgewood Drive, Harpenden, AL5 3LJ
• Sold Apr 2023£1,125,000 | 4 Bed House32, Carpenders Close, Harpenden, AL5 3HN32, Carpenders Close, Harpenden, AL5 3HN
• Sold Dec 2022£875,000 | 4 Bed House35, Tuffnells Way, Harpenden, AL5 3HA35, Tuffnells Way, Harpenden, AL5 3HA
• Sold Mar 2022£1,325,000 | 4 Bed House58, Roundwood Lane, Harpenden, AL5 3EP58, Roundwood Lane, Harpenden, AL5 3EP
• Sold Mar 2022£1,125,000 | 4 Bed House4, Mayfield Close, Harpenden, AL5 3LG4, Mayfield Close, Harpenden, AL5 3LG
• Sold Jan 2022£1,185,000 | 4 Bed House54, Falconers Field, Harpenden, AL5 3ET54, Falconers Field, Harpenden, AL5 3ET
• Sold Oct 2020£1,000,000 | 4 Bed House98, Park Rise, Harpenden, AL5 3AN98, Park Rise, Harpenden, AL5 3AN
• Sold Nov 2019£850,000 | 4 Bed House10, Ashley Gardens, Harpenden, AL5 3EY10, Ashley Gardens, Harpenden, AL5 3EY
• Sold May 2019£850,000 | 4 Bed House9A, How Field, Harpenden, AL5 3AU9A, How Field, Harpenden, AL5 3AU
• Sold Mar 2019£950,000 | 4 Bed House9, Falconers Field, Harpenden, AL5 3EU9, Falconers Field, Harpenden, AL5 3EU
• Sold Oct 2018£910,000 | 4 Bed House4, Tuffnells Way, Harpenden, AL5 3HH4, Tuffnells Way, Harpenden, AL5 3HH
• Sold Jan 2018£768,000 | 4 Bed House14, Ashley Gardens, Harpenden, AL5 3EY14, Ashley Gardens, Harpenden, AL5 3EY
• Sold Aug 2014£765,000 | 4 Bed House58, Park Rise, Harpenden, AL5 3AL58, Park Rise, Harpenden, AL5 3AL
• Sold Jul 2013£950,000 | 4 Bed House1, How Field, Harpenden, AL5 3AU1, How Field, Harpenden, AL5 3AU
• Sold Jul 2010£810,000 | 4 Bed House4, How Field, Harpenden, AL5 3AU4, How Field, Harpenden, AL5 3AU

Of the 12 addresses on How Field, Harpenden, AL5, 3, How Field, Harpenden comes out as the 8th largest and the 8th most expensive in our analysis of the public data.

It is also £218k more expensive than the average property across the AL5 district.

• Roundwood Primary School

  600 m away
• Wood End School

  600 m away
• St Nicholas CofE VA Primary School

  1.3 km away

• Roundwood Park School

  500 m away
• St George's School

  1.4 km away
• Sir John Lawes School

  1.9 km away

• Harpenden

  |

  1.8 km away
• Luton Airport Parkway

  |

  5.6 km away
• Luton

  |

  7.0 km away

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