HM Land Registry records the plot of land for 9, Aran Close, Harpenden as measuring 320 m².

That makes it the 6th largest plot in the postcode, where all 19 other houses have recorded plot data.

9, Aran Close, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 22 Feb 2026.

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

The most recent sale of 9, Aran Close, Harpenden completed on 14th August 2015 at £529,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 this is the property's only sale.

Values of comparable properties have risen by 49.9% over the period since August 2015.

• Sold Aug 2015£529,000

Since 2017 241 properties similar to 9, Aran Close, Harpenden have sold within a radius of 880 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 12th January 2026, was 4, Ravenscroft, Harpenden, AL5 1ST, a freehold house which sold for £610,000.

Read more about house prices in AL5.

• Sold Jan 2026£610,000 | 3 Bed House4, Ravenscroft, Harpenden, AL5 1ST4, Ravenscroft, Harpenden, AL5 1ST
• Sold Dec 2025£665,000 | 3 Bed House6, Bewdley Close, Harpenden, AL5 1QX6, Bewdley Close, Harpenden, AL5 1QX
• Sold Nov 2025£800,000 | 3 Bed House4, Acacia Walk, Harpenden, AL5 1SH4, Acacia Walk, Harpenden, AL5 1SH
• Sold Aug 2025£662,000 | 3 Bed House37, Welbeck Rise, Harpenden, AL5 1RT37, Welbeck Rise, Harpenden, AL5 1RT
• Sold Aug 2025£680,000 | 3 Bed House31, Cranbourne Drive, Harpenden, AL5 1RJ31, Cranbourne Drive, Harpenden, AL5 1RJ
• 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 Sep 2024£672,660 | 3 Bed House32, Cranbourne Drive, Harpenden, AL5 1RL32, Cranbourne Drive, Harpenden, AL5 1RL
• Sold Jul 2024£690,000 | 3 Bed House34, Ranleigh Walk, Harpenden, AL5 1SR34, Ranleigh Walk, Harpenden, AL5 1SR
• Sold Jul 2024£625,000 | 3 Bed House15, Tiverton Court, Harpenden, AL5 1SU15, Tiverton Court, Harpenden, AL5 1SU
• 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 Dec 2023£695,000 | 3 Bed House45, Eastcote Drive, Harpenden, AL5 1SE45, Eastcote Drive, Harpenden, AL5 1SE
• Sold Nov 2022£635,000 | 3 Bed House4, Aran Close, Harpenden, AL5 1SW4, Aran Close, Harpenden, AL5 1SW
• Sold Jan 2022£570,000 | 3 Bed House3, Bewdley Close, Harpenden, AL5 1QX3, Bewdley Close, Harpenden, AL5 1QX
• Sold Oct 2021£600,000 | 3 Bed House27, Welbeck Rise, Harpenden, AL5 1RT27, Welbeck Rise, Harpenden, AL5 1RT
• Sold Jun 2021£552,500 | 3 Bed House21, Ranleigh Walk, Harpenden, AL5 1SR21, Ranleigh Walk, Harpenden, AL5 1SR
• Sold Jun 2018£522,700 | 3 Bed House17, Aran Close, Harpenden, AL5 1SW17, Aran Close, Harpenden, AL5 1SW
• Sold May 2017£585,000 | 3 Bed House2, Ranleigh Walk, Harpenden, AL5 1SR2, Ranleigh Walk, Harpenden, AL5 1SR

Of the 19 addresses on Aran Close, Harpenden, AL5, 9, Aran Close, Harpenden comes out as the 17th largest and the 16th most expensive in our analysis of the public data.

It is also £274k less expensive than the average property across the AL5 district.

• The Grove Infant and Nursery School

  700 m away
• The Grove Junior School

  700 m away
• High Beeches Primary School

  1.3 km away

• Katherine Warington School

  2.4 km away
• Sir John Lawes School

  2.4 km away
• St George's School

  2.6 km away

• Harpenden

  |

  1.8 km away
• St Albans City

  |

  5.7 km away
• St Albans Abbey

  |

  6.4 km away

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