HM Land Registry records the plot of land for 17, The Chowns, Harpenden as measuring 1,851 m².

That makes it the largest plot in the postcode, where all 16 other houses have recorded plot data.

17, The Chowns, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 19 May 2016.

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

The most recent sale of 17, The Chowns, Harpenden completed on 18th September 2023 at £2,740,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have dropped by 24.2% over the period since September 2023.

Since 2011 36 properties similar to 17, The Chowns, Harpenden have sold within a radius of 1.5 kilometres, per the Land Registry and our network of Estate Agents.

The latest, on the 17th October 2025, was 41, The Deerings, Harpenden, AL5 2PF, a freehold house which sold for £2,175,000.

Read more about house prices in AL5.

• Sold Oct 2025£2,175,000 | 5 Bed House41, The Deerings, Harpenden, AL5 2PF41, The Deerings, Harpenden, AL5 2PF
• Sold Aug 2025£2,350,000 | 5 Bed House19, The Uplands, Harpenden, AL5 2PG19, The Uplands, Harpenden, AL5 2PG
• Sold Jul 2025£2,500,000 | 5 Bed House9, The Uplands, Harpenden, AL5 2PG9, The Uplands, Harpenden, AL5 2PG
• Sold Feb 2025£2,425,000 | 5 Bed House14, High Elms, Harpenden, AL5 2JU14, High Elms, Harpenden, AL5 2JU
• Sold Nov 2024£2,282,200 | 5 Bed HouseCedar Lodge, Redbourn Lane, Harpenden, AL5 2NACedar Lodge, Redbourn Lane, Harpenden, AL5 2NA
• Sold Jul 2024£2,425,000 | 5 Bed HouseGray Corners, West Common Grove, Harpenden, AL5 2LEGray Corners, West Common Grove, Harpenden, AL5 2LE
• Sold Mar 2024£3,250,000 | 5 Bed House27, The Uplands, Harpenden, AL5 2PG27, The Uplands, Harpenden, AL5 2PG
• Sold Dec 2021£2,185,000 | 5 Bed House1, The Chowns, Harpenden, AL5 2BN1, The Chowns, Harpenden, AL5 2BN
• Sold Dec 2021£2,725,000 | 5 Bed House1, Garden Close, Harpenden, AL5 2EG1, Garden Close, Harpenden, AL5 2EG
• Sold Sep 2021£2,750,000 | 5 Bed House31, Oakfield Road, Harpenden, AL5 2NP31, Oakfield Road, Harpenden, AL5 2NP
• Sold Jun 2021£2,375,000 | 5 Bed House5, Oakhurst Avenue, Harpenden, AL5 2NB5, Oakhurst Avenue, Harpenden, AL5 2NB
• Sold Feb 2020£2,085,000 | 5 Bed HouseTwin Oaks, Redbourn Lane, Harpenden, AL5 2NATwin Oaks, Redbourn Lane, Harpenden, AL5 2NA
• Sold Oct 2019£1,700,000 | 5 Bed House4, Burywick, Harpenden, AL5 2AE4, Burywick, Harpenden, AL5 2AE
• Sold Aug 2019£1,975,000 | 5 Bed House10, High Elms, Harpenden, AL5 2JU10, High Elms, Harpenden, AL5 2JU
• Sold Aug 2018£2,100,000 | 5 Bed House34B, Oakfield Road, Harpenden, AL5 2NS34B, Oakfield Road, Harpenden, AL5 2NS
• Sold Oct 2017£1,585,000 | 5 Bed House46, Oakfield Road, Harpenden, AL5 2NS46, Oakfield Road, Harpenden, AL5 2NS
• Sold Sep 2017£2,100,000 | 5 Bed House18, The Uplands, Harpenden, AL5 2PQ18, The Uplands, Harpenden, AL5 2PQ
• Sold Oct 2015£1,965,000 | 5 Bed House37, Barlings Road, Harpenden, AL5 2AW37, Barlings Road, Harpenden, AL5 2AW
• 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

Of the 16 addresses on The Chowns, Harpenden, AL5, 17, The Chowns, Harpenden comes out as the 4th largest and the 4th most expensive in our analysis of the public data.

It is also £1.547m more expensive than the average property across the AL5 district.

• St Dominic Catholic Primary School

  1.8 km away
• The Grove Junior School

  1.9 km away
• The Grove Infant and Nursery School

  1.9 km away

• Townsend Church of England School

  2.6 km away
• Roundwood Park School

  2.9 km away
• St George's School

  2.9 km away

• Harpenden

  |

  2.1 km away
• St Albans City

  |

  5.5 km away
• St Albans Abbey

  |

  5.8 km away

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