According to data from HM Land Registry, 17, The Warren, Harpenden sits on a plot of 1,043 m².

We have plot size data on 17 out of 17 other houses in the postcode and 17, The Warren, Harpenden sits on the 17th largest plot.

17, The Warren, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Oct 2014.

The property is not connected to mains gas and has fully triple glazed windows. It is heated using electric storage heaters.

According to HM Land Registry, 17, The Warren, Harpenden was last sold on 1st June 2023 for £1,675,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since June 2023, the market for similar properties has dropped by 25.1%.

• Sold Jun 2023£1,675,000
• Sold Jan 2015£1,225,000

According to the Land Registry and our network of Estate Agents, there have been 86 sales of properties similar to 17, The Warren, Harpenden within a radius of 1.1 kilometres since 2008.

The most recent example is 7, The Chowns, Harpenden, AL5 2BN, a freehold house which sold for £1,850,000 on the 22nd September 2025.

Read more about house prices in AL5.

• Sold Sep 2025£1,850,000 | 5 Bed House7, The Chowns, Harpenden, AL5 2BN7, The Chowns, Harpenden, AL5 2BN
• Sold Aug 2025£1,680,000 | 5 Bed House19, Hawsley Road, Harpenden, AL5 2BL19, Hawsley Road, Harpenden, AL5 2BL
• Sold Jun 2025£1,750,000 | 5 Bed House6, The Chowns, Harpenden, AL5 2BN6, 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£1,675,000 | 5 Bed HouseArden Lea, Hatching Green, Harpenden, AL5 2JPArden Lea, Hatching Green, Harpenden, AL5 2JP
• Sold Jun 2024£1,465,000 | 5 Bed House15, Penny Croft, Harpenden, AL5 2PD15, Penny Croft, Harpenden, AL5 2PD
• Sold Apr 2023£1,595,000 | 5 Bed House14, Hawsley Road, Harpenden, AL5 2BL14, Hawsley Road, Harpenden, AL5 2BL
• Sold Feb 2023£1,756,000 | 5 Bed House5, The Warren, Harpenden, AL5 2NH5, The Warren, Harpenden, AL5 2NH
• Sold Jul 2022£1,800,000 | 5 Bed HouseBarn Cottage, Hatching Green, Harpenden, AL5 2JYBarn Cottage, Hatching Green, Harpenden, AL5 2JY
• Sold Dec 2021£1,600,000 | 5 Bed House14, Geescroft Walk, Harpenden, AL5 2GX14, Geescroft Walk, Harpenden, AL5 2GX
• Sold Nov 2021£1,350,000 | 5 Bed House5, Geescroft Walk, Harpenden, AL5 2GX5, Geescroft Walk, Harpenden, AL5 2GX
• Sold Apr 2021£1,670,000 | 5 Bed House16, Oakfield Road, Harpenden, AL5 2NL16, Oakfield Road, Harpenden, AL5 2NL
• Sold Mar 2021£1,630,000 | 5 Bed HouseThe Spinney, Little Lane, Harpenden, AL5 1DFThe Spinney, Little Lane, Harpenden, AL5 1DF
• Sold Dec 2020£1,490,000 | 5 Bed House4, High Elms, Harpenden, AL5 2JU4, High Elms, Harpenden, AL5 2JU
• Sold Aug 2019£1,375,000 | 5 Bed House11, Barlings Road, Harpenden, AL5 2AL11, Barlings Road, Harpenden, AL5 2AL
• Sold Sep 2018£1,450,000 | 5 Bed House12, Geescroft Walk, Harpenden, AL5 2GX12, Geescroft Walk, Harpenden, AL5 2GX
• Sold Mar 2017£1,170,000 | 5 Bed House12, Hatching Green Close, Harpenden, AL5 2LB12, Hatching Green Close, Harpenden, AL5 2LB
• Sold Feb 2014£1,100,000 | 5 Bed House8, Hatching Green Close, Harpenden, AL5 2LB8, Hatching Green Close, Harpenden, AL5 2LB
• Sold Dec 2013£1,045,000 | 5 Bed HouseHillbark, Redbourn Lane, Harpenden, AL5 2NAHillbark, Redbourn Lane, Harpenden, AL5 2NA
• Sold Dec 2008£994,244 | 5 Bed House11, Hatching Green Close, Harpenden, AL5 2LB11, Hatching Green Close, Harpenden, AL5 2LB

The Warren, Harpenden, AL5 has a total of 17 addresses. According to our analysis of all the public data, 17, The Warren, Harpenden is the 12th largest and the 16th most expensive property on the street.

When compared to the postcode district it is £732k more expensive than the average property in AL5.

• St Dominic Catholic Primary School

  1.3 km away
• The Grove Junior School

  1.6 km away
• The Grove Infant and Nursery School

  1.6 km away

• St George's School

  2.4 km away
• Roundwood Park School

  2.4 km away
• Sir John Lawes School

  2.6 km away

• Harpenden

  |

  1.6 km away
• St Albans City

  |

  5.9 km away
• St Albans Abbey

  |

  6.3 km away

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