According to data from HM Land Registry, 15, The Warren, Harpenden sits on a plot of 2,542 m².

We have plot size data on 17 out of 17 other houses in the postcode and 15, The Warren, Harpenden sits on the largest plot.

15, The Warren, Harpenden has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 21 Feb 2020.

The property is connected to mains gas and has fully double glazed windows. It is heated using warm air (mains gas, warm air, mains gas).

According to HM Land Registry, 15, The Warren, Harpenden was last sold on 30th September 2020 for £1,735,000 and was recorded as a freehold house.

The property has only had this single sale since 1995.

Since September 2020, the market for similar properties has dropped by 14.5%.

According to the Land Registry and our network of Estate Agents, there have been 45 sales of properties similar to 15, The Warren, Harpenden within a radius of 1.1 kilometres since 2011.

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 Sep 2025£1,750,000 | 5 Bed House6, Wheatfield Avenue, Harpenden, AL5 2NU6, Wheatfield Avenue, Harpenden, AL5 2NU
• Sold Jul 2025£1,850,000 | 5 Bed House36, The Uplands, Harpenden, AL5 2NZ36, The Uplands, Harpenden, AL5 2NZ
• 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 Jul 2024£1,800,000 | 5 Bed House23, The Uplands, Harpenden, AL5 2PG23, The Uplands, Harpenden, AL5 2PG
• Sold Apr 2024£1,750,000 | 5 Bed House42, Oakfield Road, Harpenden, AL5 2NS42, Oakfield Road, Harpenden, AL5 2NS
• Sold Sep 2023£2,335,000 | 5 Bed House10, The Warren, Harpenden, AL5 2NH10, The Warren, Harpenden, AL5 2NH
• Sold Aug 2023£2,250,000 | 5 Bed House4, Dellcroft Way, Harpenden, AL5 2NG4, Dellcroft Way, Harpenden, AL5 2NG
• 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 Jun 2021£650,000 | 5 Bed House6A, High Elms, Harpenden, AL5 2JU6A, High Elms, Harpenden, AL5 2JU
• Sold May 2021£1,510,000 | 5 Bed HouseWhite Gables, Little Lane, Harpenden, AL5 1DFWhite Gables, Little Lane, Harpenden, AL5 1DF
• Sold Apr 2021£1,670,000 | 5 Bed House16, Oakfield Road, Harpenden, AL5 2NL16, Oakfield Road, Harpenden, AL5 2NL
• Sold Sep 2018£1,450,000 | 5 Bed House12, Geescroft Walk, Harpenden, AL5 2GX12, Geescroft Walk, Harpenden, AL5 2GX
• Sold Jul 2017£1,895,000 | 5 Bed House2, West Common Way, Harpenden, AL5 2LF2, West Common Way, Harpenden, AL5 2LF
• Sold Nov 2012£1,365,000 | 5 Bed House33, Oakfield Road, Harpenden, AL5 2NP33, Oakfield Road, Harpenden, AL5 2NP
• Sold Dec 2011£1,250,000 | 5 Bed House19, Oakfield Road, Harpenden, AL5 2NW19, Oakfield Road, Harpenden, AL5 2NW
• Sold Oct 2011£1,355,000 | 5 Bed House3, High Elms, Harpenden, AL5 2JU3, High Elms, Harpenden, AL5 2JU

The Warren, Harpenden, AL5 has a total of 17 addresses. According to our analysis of all the public data, 15, The Warren, Harpenden is the 13th largest and the 13th most expensive property on the street.

When compared to the postcode district it is £1.04m 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.