HM Land Registry records the plot of land for 20, Byron Road, Harpenden as measuring 701 m².

That makes it the 5th largest plot in the postcode, where 9 of the 11 other houses have recorded plot data.

20, Byron Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Apr 2021.

The property is connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

The most recent sale of 20, Byron Road, Harpenden completed on 29th June 2021 at £2,150,000 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 dropped by 6.0% over the period since June 2021.

• Sold Jun 2021£2,150,000

Since 2012 36 properties similar to 20, Byron Road, Harpenden have sold within a radius of 690 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 Sep 2025£1,685,000 | 5 Bed House1, Jameson Road, Harpenden, AL5 4HG1, Jameson Road, Harpenden, AL5 4HG
• Sold Aug 2025£2,242,800 | 5 Bed House16, Bowers Way, Harpenden, AL5 4EW16, Bowers Way, Harpenden, AL5 4EW
• Sold Mar 2025£1,715,000 | 5 Bed House26, Bloomfield Road, Harpenden, AL5 4DB26, Bloomfield Road, Harpenden, AL5 4DB
• Sold Jan 2025£1,846,000 | 5 Bed House10, Hollybush Lane, Harpenden, AL5 4AT10, Hollybush Lane, Harpenden, AL5 4AT
• Sold Mar 2024£1,735,000 | 5 Bed House8, Douglas Road, Harpenden, AL5 2EW8, Douglas Road, Harpenden, AL5 2EW
• Sold Apr 2023£2,040,000 | 5 Bed House13, Townsend Road, Harpenden, AL5 4BQ13, Townsend Road, Harpenden, AL5 4BQ
• 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 Sep 2021£1,860,000 | 5 Bed House49, Luton Road, Harpenden, AL5 2UB49, Luton Road, Harpenden, AL5 2UB
• Sold Jul 2021£1,537,000 | 5 Bed House15, Townsend Lane, Harpenden, AL5 2PY15, Townsend Lane, Harpenden, AL5 2PY
• Sold Apr 2021£1,850,000 | 5 Bed House23, Townsend Road, Harpenden, AL5 4BG23, Townsend Road, Harpenden, AL5 4BG
• Sold Jul 2019£100,000 | 5 Bed House20, Hollybush Lane, Harpenden, AL5 4AT20, Hollybush Lane, Harpenden, AL5 4AT
• Sold May 2019£1,600,000 | 5 Bed House16, Wordsworth Road, Harpenden, AL5 4AF16, Wordsworth Road, Harpenden, AL5 4AF
• 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 Apr 2016£1,400,000 | 5 Bed House3, Bowers Way, Harpenden, AL5 4EP3, Bowers Way, Harpenden, AL5 4EP
• 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 Nov 2012£1,300,000 | 5 Bed House6, Douglas Road, Harpenden, AL5 2EW6, Douglas Road, Harpenden, AL5 2EW

Of the 19 addresses on Byron Road, Harpenden, AL5, 20, Byron Road, Harpenden comes out as the 2nd largest and the most expensive in our analysis of the public data.

It is also £969k more expensive than the average property across the AL5 district.

• St Nicholas CofE VA Primary School

  600 m away
• Harpenden Academy

  800 m away
• Roundwood Primary School

  800 m away

• St George's School

  400 m away
• Roundwood Park School

  900 m away
• Sir John Lawes School

  1.0 km away

• Harpenden

  |

  1.0 km away
• Luton Airport Parkway

  |

  6.2 km away
• Luton

  |

  7.7 km away

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