18, Netherfield Road, Harpenden occupies a 815 m² plot as recorded by HM Land Registry.

All 10 other houses in this postcode have recorded plot sizes, and this one ranks as the 9th largest.

18, Netherfield Road, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 14 Feb 2018.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

18, Netherfield Road, Harpenden last changed hands on 23rd August 2018, selling for £1,350,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 11.4% since August 2018.

• Sold Aug 2018£1,350,000
• Sold Sep 2014£1,000,000

Land Registry records and our Estate Agent network show 83 sales of comparable properties within 1.6 kilometres of 18, Netherfield Road, Harpenden since 2009.

Most recently, 19, Hawsley Road, Harpenden, AL5 2BL, a freehold house, sold at £1,680,000 on the 28th August 2025.

Read more about house prices in AL5.

• Sold Aug 2025£1,680,000 | 5 Bed House19, Hawsley Road, Harpenden, AL5 2BL19, Hawsley Road, Harpenden, AL5 2BL
• Sold Apr 2025£1,650,000 | 5 Bed House10, The Chowns, Harpenden, AL5 2BN10, The Chowns, Harpenden, AL5 2BN
• Sold Mar 2025£1,637,500 | 5 Bed House3, The Chowns, Harpenden, AL5 2BN3, The Chowns, Harpenden, AL5 2BN
• Sold Nov 2024£1,395,000 | 5 Bed House17, Penny Croft, Harpenden, AL5 2PD17, Penny Croft, Harpenden, AL5 2PD
• Sold Oct 2024£1,800,000 | 5 Bed House20, The Deerings, Harpenden, AL5 2PE20, The Deerings, Harpenden, AL5 2PE
• Sold Jul 2024£1,800,000 | 5 Bed House23, The Uplands, Harpenden, AL5 2PG23, The Uplands, Harpenden, AL5 2PG
• Sold Jul 2024£1,325,000 | 5 Bed House17, Barlings Road, Harpenden, AL5 2AL17, Barlings Road, Harpenden, AL5 2AL
• Sold Jun 2024£1,465,000 | 5 Bed House15, Penny Croft, Harpenden, AL5 2PD15, Penny Croft, Harpenden, AL5 2PD
• Sold Apr 2024£1,310,000 | 5 Bed House19, The Deerings, Harpenden, AL5 2PF19, The Deerings, Harpenden, AL5 2PF
• Sold Sep 2023£1,500,000 | 5 Bed House16, The Deerings, Harpenden, AL5 2PE16, The Deerings, Harpenden, AL5 2PE
• Sold Apr 2023£1,595,000 | 5 Bed House14, Hawsley Road, Harpenden, AL5 2BL14, Hawsley Road, Harpenden, AL5 2BL
• Sold Aug 2022£1,675,000 | 5 Bed House5, Netherfield Road, Harpenden, AL5 2AF5, Netherfield Road, Harpenden, AL5 2AF
• Sold Jan 2022£1,700,000 | 5 Bed House5, Penny Croft, Harpenden, AL5 2PD5, Penny Croft, Harpenden, AL5 2PD
• Sold Sep 2019£1,270,000 | 5 Bed HouseClarence Lodge, West Common, Harpenden, AL5 2ARClarence Lodge, West Common, Harpenden, AL5 2AR
• Sold Apr 2019£1,150,000 | 5 Bed House8, The Deerings, Harpenden, AL5 2PE8, The Deerings, Harpenden, AL5 2PE
• Sold Aug 2018£1,150,000 | 5 Bed House14, Netherfield Road, Harpenden, AL5 2AG14, Netherfield Road, Harpenden, AL5 2AG
• Sold Apr 2017£1,325,000 | 5 Bed House9 Maple Cottages, West Common, Harpenden, AL5 2AS9 Maple Cottages, West Common, Harpenden, AL5 2AS
• Sold Nov 2016£928,000 | 5 Bed House35, The Deerings, Harpenden, AL5 2PF35, The Deerings, Harpenden, AL5 2PF
• Sold May 2011£913,000 | 5 Bed House26, The Deerings, Harpenden, AL5 2PE26, The Deerings, Harpenden, AL5 2PE
• Sold Oct 2009£780,000 | 5 Bed House18, Hawsley Road, Harpenden, AL5 2BL18, Hawsley Road, Harpenden, AL5 2BL

Agents in our network have reported 2 lettings within 1.6 kilometres of 18, Netherfield Road, Harpenden across the last 2 years.

The newest of these is 3, Childwick Green, St. Albans, AL3 6JJ, a freehold house let by Collinson Hall in April 2025.

• 
  Let Apr 2025£ Undisclosed | 2 Bed House3, Childwick Green, St. Albans, AL3 6JJ3, Childwick Green, St. Albans, AL3 6JJ
• 
  Let Jul 2023£ Undisclosed | 2 Bed House1, Childwick Green, St. Albans, AL3 6JJ1, Childwick Green, St. Albans, AL3 6JJ

•Nearby is defined as the radius comprising the nearest 2,000 addresses.

Our analysis of the public data ranks 18, Netherfield Road, Harpenden as the 14th largest and the 15th most expensive of the 18 addresses on Netherfield Road, Harpenden, AL5.

Against the AL5 postcode district average, it is £568k more expensive than the typical property.

• The Grove Junior School

  1.9 km away
• The Grove Infant and Nursery School

  1.9 km away
• St Dominic Catholic Primary School

  1.9 km away

• Townsend Church of England School

  2.4 km away
• St George's School

  3.1 km away
• St Albans Girls' School

  3.1 km away

• Harpenden

  |

  2.3 km away
• St Albans City

  |

  5.2 km away
• St Albans Abbey

  |

  5.6 km away

Environment Agency data suggests this area has a Very Low risk of flooding.