HM Land Registry records the plot of land for 1, Otterton Close, Harpenden as measuring 278 m².

That makes it the 6th largest plot in the postcode, where 11 of the 13 other houses have recorded plot data.

1, Otterton Close, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 27 Mar 2013.

The property is not 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 1, Otterton Close, Harpenden completed on 1st September 2015 at £570,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold 4 times.

Values of comparable properties have risen by 32.7% over the period since September 2015.

• Sold Sep 2015£570,000
• Sold Nov 2005£358,000
• Sold Dec 1999£207,500

Since 2012 64 properties similar to 1, Otterton Close, Harpenden have sold within a radius of 760 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 15th May 2026, was 33, Park Mount, Harpenden, AL5 3AS, a freehold house which sold for £725,000.

Read more about house prices in AL5.

• Sold May 2026£725,000 | 3 Bed House33, Park Mount, Harpenden, AL5 3AS33, Park Mount, Harpenden, AL5 3AS
• Sold Dec 2025£717,230 | 3 Bed House3, Park Mount, Harpenden, AL5 3AS3, Park Mount, Harpenden, AL5 3AS
• Sold Aug 2025£685,000 | 3 Bed House19, Park Mount, Harpenden, AL5 3AS19, Park Mount, Harpenden, AL5 3AS
• Sold Mar 2025£500,000 | 4 Bed House6A, Harpenden Rise, Harpenden, AL5 3BH6A, Harpenden Rise, Harpenden, AL5 3BH
• Sold Dec 2024£775,000 | 4 Bed House1, Park Hill, Harpenden, AL5 3AT1, Park Hill, Harpenden, AL5 3AT
• Sold Oct 2024£850,000 | 4 Bed House3, Park Rise Close, Harpenden, AL5 3AW3, Park Rise Close, Harpenden, AL5 3AW
• Sold May 2024£750,000 | 3 Bed House5, Park Hill, Harpenden, AL5 3AT5, Park Hill, Harpenden, AL5 3AT
• Sold Sep 2022£945,000 | 3 Bed House19, Harpenden Rise, Harpenden, AL5 3BG19, Harpenden Rise, Harpenden, AL5 3BG
• Sold May 2022£600,000 | 3 Bed House9, Harpenden Rise, Harpenden, AL5 3BG9, Harpenden Rise, Harpenden, AL5 3BG
• Sold Apr 2022£705,000 | 4 Bed House2, Otterton Close, Harpenden, AL5 3BE2, Otterton Close, Harpenden, AL5 3BE
• Sold Feb 2022£593,000 | 4 Bed House22, Aplins Close, Harpenden, AL5 2QB22, Aplins Close, Harpenden, AL5 2QB
• Sold Sep 2021£645,000 | 3 Bed House64, Park Mount, Harpenden, AL5 3AR64, Park Mount, Harpenden, AL5 3AR
• Sold Nov 2018£685,000 | 4 Bed House39, Harpenden Rise, Harpenden, AL5 3BG39, Harpenden Rise, Harpenden, AL5 3BG
• Sold Nov 2018£665,000 | 4 Bed House11, Otterton Close, Harpenden, AL5 3BE11, Otterton Close, Harpenden, AL5 3BE
• Sold Oct 2017£650,000 | 3 Bed House5, Park Mount, Harpenden, AL5 3AS5, Park Mount, Harpenden, AL5 3AS
• Sold Mar 2017£660,000 | 3 Bed House21, Harpenden Rise, Harpenden, AL5 3BG21, Harpenden Rise, Harpenden, AL5 3BG
• Sold Feb 2016£695,000 | 3 Bed House46, Park Mount, Harpenden, AL5 3AR46, Park Mount, Harpenden, AL5 3AR
• Sold Dec 2014£535,000 | 3 Bed House23, Park Mount, Harpenden, AL5 3AS23, Park Mount, Harpenden, AL5 3AS
• Sold Oct 2014£525,000 | 4 Bed House20B, Harpenden Rise, Harpenden, AL5 3BH20B, Harpenden Rise, Harpenden, AL5 3BH
• Sold Mar 2012£499,995 | 3 Bed House9, Otterton Close, Harpenden, AL5 3BE9, Otterton Close, Harpenden, AL5 3BE

Of the 13 addresses on Otterton Close, Harpenden, AL5, 1, Otterton Close, Harpenden comes out as the 10th largest and the 11th most expensive in our analysis of the public data.

It is also £207k less expensive than the average property across the AL5 district.

• Roundwood Primary School

  500 m away
• Wood End School

  900 m away
• St Nicholas CofE VA Primary School

  1.0 km away

• Roundwood Park School

  500 m away
• St George's School

  1.0 km away
• Sir John Lawes School

  1.6 km away

• Harpenden

  |

  1.5 km away
• Luton Airport Parkway

  |

  5.8 km away
• Luton

  |

  7.2 km away

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