HM Land Registry records the plot of land for 22, Douglas Road, Harpenden as measuring 978 m².

That makes it the 2nd largest plot in the postcode, where all 13 other houses have recorded plot data.

22, Douglas Road, Harpenden has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 06 May 2009.

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

The most recent sale of 22, Douglas Road, Harpenden completed on 17th November 2009 at £1,920,000 and was recorded by HM Land Registry as a freehold house.

Since 1995 the property has sold twice.

Values of comparable properties have risen by 32.9% over the period since November 2009.

• Sold Nov 2009£1,920,000
• Sold Jul 1996£458,000

Since 2011 42 properties similar to 22, Douglas Road, Harpenden have sold within a radius of 660 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 13th January 2026, was 7, Moreton Place, Harpenden, AL5 2UF, a freehold house which sold for £1,925,000.

Read more about house prices in AL5.

• Sold Jan 2026£1,925,000 | 5 Bed House7, Moreton Place, Harpenden, AL5 2UF7, Moreton Place, Harpenden, AL5 2UF
• Sold Aug 2025£2,242,800 | 5 Bed House16, Bowers Way, Harpenden, AL5 4EW16, Bowers Way, Harpenden, AL5 4EW
• Sold Jul 2025£2,300,000 | 5 Bed House4, Maple Road, Harpenden, AL5 2DS4, Maple Road, Harpenden, AL5 2DS
• Sold Jun 2025£2,195,000 | 5 Bed House11C, Douglas Road, Harpenden, AL5 2EN11C, Douglas Road, Harpenden, AL5 2EN
• Sold Aug 2024£2,300,000 | 5 Bed House11, Moreton Avenue, Harpenden, AL5 2EU11, Moreton Avenue, Harpenden, AL5 2EU
• Sold Jul 2024£2,362,500 | 5 Bed House1, Rosebery Avenue, Harpenden, AL5 2QT1, Rosebery Avenue, Harpenden, AL5 2QT
• Sold Mar 2024£1,735,000 | 5 Bed House8, Douglas Road, Harpenden, AL5 2EW8, Douglas Road, Harpenden, AL5 2EW
• Sold Jun 2022£1,645,000 | 5 Bed House14, Moreton End Lane, Harpenden, AL5 2EX14, Moreton End Lane, Harpenden, AL5 2EX
• Sold Nov 2021£1,835,000 | 5 Bed House4, Douglas Road, Harpenden, AL5 2EW4, Douglas Road, Harpenden, AL5 2EW
• Sold Jun 2021£2,150,000 | 5 Bed House20, Byron Road, Harpenden, AL5 4AB20, Byron Road, Harpenden, AL5 4AB
• Sold Jul 2019£1,750,000 | 5 Bed House16, Moreton Avenue, Harpenden, AL5 2ET16, Moreton Avenue, Harpenden, AL5 2ET
• Sold Jul 2019£1,650,000 | 5 Bed House37, Moreton End Lane, Harpenden, AL5 2EY37, Moreton End Lane, Harpenden, AL5 2EY
• Sold Jul 2019£800,000 | 5 Bed House13, Roundwood Park, Harpenden, AL5 3AB13, Roundwood Park, Harpenden, AL5 3AB
• Sold Jul 2019£800,000 | 5 Bed HousePark View House, Roundwood Park, Harpenden, AL5 3ABPark View House, Roundwood Park, Harpenden, AL5 3AB
• Sold Mar 2019£1,800,000 | 5 Bed House55, Luton Road, Harpenden, AL5 2UE55, Luton Road, Harpenden, AL5 2UE
• Sold Mar 2018£1,850,000 | 5 Bed House33, Moreton End Lane, Harpenden, AL5 2EY33, Moreton End Lane, Harpenden, AL5 2EY
• Sold Aug 2015£1,550,000 | 5 Bed House14, Douglas Road, Harpenden, AL5 2EW14, Douglas Road, Harpenden, AL5 2EW
• Sold Feb 2015£1,470,000 | 5 Bed House15, Moreton End Lane, Harpenden, AL5 2EY15, Moreton End Lane, Harpenden, AL5 2EY
• Sold Jan 2014£2,300,000 | 5 Bed House7, Longcroft Avenue, Harpenden, AL5 2RB7, Longcroft Avenue, Harpenden, AL5 2RB
• Sold Jan 2011£1,150,000 | 5 Bed House21, Moreton Avenue, Harpenden, AL5 2EU21, Moreton Avenue, Harpenden, AL5 2EU

Of the 66 addresses on Douglas Road, Harpenden, AL5, 22, Douglas Road, Harpenden comes out as the 9th largest and the 5th most expensive in our analysis of the public data.

It is also £1.242m more expensive than the average property across the AL5 district.

• St Nicholas CofE VA Primary School

  600 m away
• Roundwood Primary School

  600 m away
• Harpenden Academy

  900 m away

• Roundwood Park School

  700 m away
• St George's School

  700 m away
• Sir John Lawes School

  1.2 km away

• Harpenden

  |

  1.0 km away
• Luton Airport Parkway

  |

  6.2 km away
• Luton

  |

  7.6 km away

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