According to data from HM Land Registry, 21, The Deerings, Harpenden sits on a plot of 1,020 m².

We have plot size data on 25 out of 26 other houses in the postcode and 21, The Deerings, Harpenden sits on the 6th largest plot.

21, The Deerings, Harpenden has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 09 Aug 2021.

The property is connected to mains gas and has high performance glazing. It is heated using a boiler and underfloor heating (mains gas).

According to HM Land Registry, 21, The Deerings, Harpenden was last sold on 18th September 2023 for £2,400,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since September 2023, the market for similar properties has dropped by 24.2%.

• Sold Sep 2023£2,400,000
• Sold Mar 2019£1,000,000

According to the Land Registry and our network of Estate Agents, there have been 21 sales of properties similar to 21, The Deerings, Harpenden within a radius of 1.8 kilometres since 2010.

The most recent example is 22, Prospect Lane, Harpenden, AL5 2PL, a freehold house which sold for £2,950,000 on the 26th June 2025.

Read more about house prices in AL5.

• Sold Jun 2025£2,950,000 | 5 Bed House22, Prospect Lane, Harpenden, AL5 2PL22, Prospect Lane, Harpenden, AL5 2PL
• Sold Mar 2025£3,250,000 | 5 Bed House34A, Oakfield Road, Harpenden, AL5 2NS34A, Oakfield Road, Harpenden, AL5 2NS
• Sold Mar 2024£2,065,000 | 5 Bed House11, Grange Court Road, Harpenden, AL5 1BY11, Grange Court Road, Harpenden, AL5 1BY
• Sold Feb 2023£3,000,000 | 5 Bed House9, Oak Way, Harpenden, AL5 2NT9, Oak Way, Harpenden, AL5 2NT
• Sold Jan 2023£2,850,000 | 5 Bed House9, Fairway Close, Harpenden, AL5 2NN9, Fairway Close, Harpenden, AL5 2NN
• Sold Feb 2020£2,085,000 | 5 Bed HouseTwin Oaks, Redbourn Lane, Harpenden, AL5 2NATwin Oaks, Redbourn Lane, Harpenden, AL5 2NA
• Sold Aug 2018£2,100,000 | 5 Bed House34B, Oakfield Road, Harpenden, AL5 2NS34B, Oakfield Road, Harpenden, AL5 2NS
• Sold Nov 2017£2,150,000 | 5 Bed House10, Oakfield Road, Harpenden, AL5 2NE10, Oakfield Road, Harpenden, AL5 2NE
• Sold Sep 2017£2,100,000 | 5 Bed House18, The Uplands, Harpenden, AL5 2PQ18, The Uplands, Harpenden, AL5 2PQ
• Sold Aug 2017£1,950,000 | 5 Bed House24, Prospect Lane, Harpenden, AL5 2PL24, Prospect Lane, Harpenden, AL5 2PL
• Sold Nov 2016£2,500,000 | 5 Bed House14, The Uplands, Harpenden, AL5 2PQ14, The Uplands, Harpenden, AL5 2PQ
• Sold Oct 2015£1,950,000 | 5 Bed House41, Prospect Lane, Harpenden, AL5 2PL41, Prospect Lane, Harpenden, AL5 2PL
• Sold Aug 2015£1,800,000 | 5 Bed House4, The Uplands, Harpenden, AL5 2PH4, The Uplands, Harpenden, AL5 2PH
• Sold Jun 2015£1,700,000 | 5 Bed House12, The Uplands, Harpenden, AL5 2PQ12, The Uplands, Harpenden, AL5 2PQ
• Sold Nov 2014£1,800,000 | 5 Bed HouseEastmoor Lodge, East Common, Harpenden, AL5 1DAEastmoor Lodge, East Common, Harpenden, AL5 1DA
• Sold Apr 2013£1,500,000 | 5 Bed House15, The Chowns, Harpenden, AL5 2BN15, The Chowns, Harpenden, AL5 2BN
• Sold Mar 2012£2,150,000 | 5 Bed House23, Oakfield Road, Harpenden, AL5 2NW23, Oakfield Road, Harpenden, AL5 2NW
• Sold Oct 2011£2,250,000 | 5 Bed House20, The Uplands, Harpenden, AL5 2PQ20, The Uplands, Harpenden, AL5 2PQ
• Sold Aug 2011£1,900,000 | 5 Bed House39, Barlings Road, Harpenden, AL5 2AW39, Barlings Road, Harpenden, AL5 2AW
• Sold Nov 2010£2,025,000 | 5 Bed House16, Wheatfield Road, Harpenden, AL5 2NY16, Wheatfield Road, Harpenden, AL5 2NY

Our network of Estate Agents reports 2 lets within 1.8 kilometres of 21, The Deerings, Harpenden over the last 2 years.

Most recently, 3, Childwick Green, St. Albans, AL3 6JJ, a freehold house, was 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.

The Deerings, Harpenden, AL5 has a total of 50 addresses. According to our analysis of all the public data, 21, The Deerings, Harpenden is the largest and the most expensive property on the street.

When compared to the postcode district it is £1.662m more expensive than the average property in AL5.

• St Dominic Catholic Primary School

  2.1 km away
• The Grove Junior School

  2.1 km away
• The Grove Infant and Nursery School

  2.2 km away

• Townsend Church of England School

  2.4 km away
• Roundwood Park School

  3.1 km away
• St Albans Girls' School

  3.2 km away

• Harpenden

  |

  2.4 km away
• St Albans City

  |

  5.2 km away
• St Albans Abbey

  |

  5.5 km away

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