According to data from HM Land Registry, 21, Ennis Close, Harpenden sits on a plot of 287 m².

We have plot size data on 25 out of 25 other houses in the postcode and 21, Ennis Close, Harpenden sits on the 5th largest plot.

21, Ennis Close, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 22 May 2020.

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

According to HM Land Registry, 21, Ennis Close, Harpenden was last sold on 1st December 2021 for £680,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since December 2021, the market for similar properties has risen by 19.6%.

• Sold Dec 2021£680,000
• Sold Jan 2021£580,000

According to the Land Registry and our network of Estate Agents, there have been 213 sales of properties similar to 21, Ennis Close, Harpenden within a radius of 850 metres since 2018.

The most recent example is 6, Broadstone Road, Harpenden, AL5 1RG, a freehold house which sold for £625,000 on the 4th November 2025.

Read more about house prices in AL5.

• Sold Nov 2025£625,000 | 3 Bed House6, Broadstone Road, Harpenden, AL5 1RG6, Broadstone Road, Harpenden, AL5 1RG
• Sold Sep 2025£565,000 | 3 Bed House15, Ravenscroft, Harpenden, AL5 1ST15, Ravenscroft, Harpenden, AL5 1ST
• Sold Feb 2025£565,000 | 3 Bed House13, Ravenscroft, Harpenden, AL5 1ST13, Ravenscroft, Harpenden, AL5 1ST
• Sold Nov 2024£535,000 | 3 Bed House24, Broadstone Road, Harpenden, AL5 1RG24, Broadstone Road, Harpenden, AL5 1RG
• Sold Oct 2024£635,000 | 3 Bed House25, Ranleigh Walk, Harpenden, AL5 1SR25, Ranleigh Walk, Harpenden, AL5 1SR
• Sold Oct 2024£680,000 | 3 Bed House22, Barrons Row, Harpenden, AL5 1SD22, Barrons Row, Harpenden, AL5 1SD
• Sold Oct 2024£675,000 | 3 Bed House18, Newton Close, Harpenden, AL5 1SP18, Newton Close, Harpenden, AL5 1SP
• Sold Jul 2024£690,000 | 3 Bed House34, Ranleigh Walk, Harpenden, AL5 1SR34, Ranleigh Walk, Harpenden, AL5 1SR
• Sold May 2024£595,000 | 3 Bed House21, Eastcote Drive, Harpenden, AL5 1SE21, Eastcote Drive, Harpenden, AL5 1SE
• Sold Apr 2024£600,000 | 3 Bed House2, Newton Close, Harpenden, AL5 1SP2, Newton Close, Harpenden, AL5 1SP
• Sold Mar 2024£600,000 | 3 Bed House15, Ennis Close, Harpenden, AL5 1SS15, Ennis Close, Harpenden, AL5 1SS
• Sold Nov 2023£420,000 | 3 Bed House7, Ravenscroft, Harpenden, AL5 1ST7, Ravenscroft, Harpenden, AL5 1ST
• Sold Sep 2023£545,000 | 3 Bed House12, Pendennis Court, Harpenden, AL5 1SG12, Pendennis Court, Harpenden, AL5 1SG
• Sold Nov 2022£635,000 | 3 Bed House4, Aran Close, Harpenden, AL5 1SW4, Aran Close, Harpenden, AL5 1SW
• Sold Oct 2022£535,000 | 3 Bed House3, Ennis Close, Harpenden, AL5 1SS3, Ennis Close, Harpenden, AL5 1SS
• Sold Aug 2021£470,000 | 3 Bed House4, Ennis Close, Harpenden, AL5 1SS4, Ennis Close, Harpenden, AL5 1SS
• Sold Nov 2020£425,000 | 3 Bed House9, Ennis Close, Harpenden, AL5 1SS9, Ennis Close, Harpenden, AL5 1SS
• Sold Oct 2020£462,500 | 3 Bed House5, Ennis Close, Harpenden, AL5 1SS5, Ennis Close, Harpenden, AL5 1SS
• Sold Oct 2020£565,000 | 3 Bed House16, Ranleigh Walk, Harpenden, AL5 1SR16, Ranleigh Walk, Harpenden, AL5 1SR
• Sold Jul 2018£525,000 | 3 Bed House18, Ennis Close, Harpenden, AL5 1SS18, Ennis Close, Harpenden, AL5 1SS

Ennis Close, Harpenden, AL5 has a total of 25 addresses. According to our analysis of all the public data, 21, Ennis Close, Harpenden is the 19th largest and the 11th most expensive property on the street.

When compared to the postcode district it is £375k less expensive than the average property in AL5.

• The Grove Infant and Nursery School

  600 m away
• The Grove Junior School

  700 m away
• High Beeches Primary School

  1.2 km away

• Katherine Warington School

  2.3 km away
• Sir John Lawes School

  2.4 km away
• St George's School

  2.6 km away

• Harpenden

  |

  1.9 km away
• St Albans City

  |

  5.8 km away
• St Albans Abbey

  |

  6.5 km away

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