According to data from HM Land Registry, 4, Byron Road, Harpenden sits on a plot of 1,009 m².

We have plot size data on 9 out of 11 other houses in the postcode and 4, Byron Road, Harpenden sits on the largest plot.

4, Byron Road, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 Mar 2024.

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

According to the Land Registry and our network of Estate Agents, there have been 19 sales of properties similar to 4, Byron Road, Harpenden within a radius of 690 metres since 2008.

The most recent example is 17, Ox Lane, Harpenden, AL5 4HF, a freehold house which sold for £1,435,000 on the 14th November 2025.

Read more about house prices in AL5.

• Sold Nov 2025£1,435,000 | 5 Bed House17, Ox Lane, Harpenden, AL5 4HF17, Ox Lane, Harpenden, AL5 4HF
• Sold Apr 2024£1,255,000 | 5 Bed House11, Lambourn Gardens, Harpenden, AL5 4DQ11, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Apr 2023£1,100,000 | 5 Bed House10A, Kirkwick Avenue, Harpenden, AL5 2QL10A, Kirkwick Avenue, Harpenden, AL5 2QL
• Sold Mar 2021£1,250,000 | 5 Bed House5, Hollybush Mews, Harpenden, AL5 4FR5, Hollybush Mews, Harpenden, AL5 4FR
• Sold Feb 2021£1,200,000 | 5 Bed House8, Hollybush Mews, Harpenden, AL5 4FR8, Hollybush Mews, Harpenden, AL5 4FR
• Sold Dec 2020£1,150,000 | 5 Bed House2 Hillside View, Hillside Road, Harpenden, AL5 4BT2 Hillside View, Hillside Road, Harpenden, AL5 4BT
• Sold Aug 2020£1,325,000 | 5 Bed House7, Hollybush Mews, Harpenden, AL5 4FR7, Hollybush Mews, Harpenden, AL5 4FR
• Sold Aug 2020£1,325,000 | 5 Bed House6, Hollybush Mews, Harpenden, AL5 4FR6, Hollybush Mews, Harpenden, AL5 4FR
• Sold Jul 2019£990,000 | 5 Bed House25, Bowers Way, Harpenden, AL5 4EP25, Bowers Way, Harpenden, AL5 4EP
• Sold Jul 2014£1,275,000 | 5 Bed House2, Alders End Lane, Harpenden, AL5 2HL2, Alders End Lane, Harpenden, AL5 2HL
• Sold Dec 2013£1,075,000 | 5 Bed House6, Westfield Avenue, Harpenden, AL5 4HN6, Westfield Avenue, Harpenden, AL5 4HN
• Sold Aug 2013£1,426,500 | 5 Bed House14, Hollybush Lane, Harpenden, AL5 4AT14, Hollybush Lane, Harpenden, AL5 4AT
• Sold May 2013£860,000 | 5 Bed House8, Byron Road, Harpenden, AL5 4AB8, Byron Road, Harpenden, AL5 4AB
• Sold Jul 2012£1,100,000 | 5 Bed House25, Park Hill, Harpenden, AL5 3AT25, Park Hill, Harpenden, AL5 3AT
• Sold Jun 2012£1,150,000 | 5 Bed House16, Hollybush Lane, Harpenden, AL5 4AT16, Hollybush Lane, Harpenden, AL5 4AT
• Sold Jun 2012£1,165,000 | 5 Bed House52, Townsend Lane, Harpenden, AL5 2RG52, Townsend Lane, Harpenden, AL5 2RG
• Sold Oct 2011£810,000 | 5 Bed House25, Lambourn Gardens, Harpenden, AL5 4DQ25, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold May 2010£1,200,000 | 5 Bed House14, Fallows Green, Harpenden, AL5 4HD14, Fallows Green, Harpenden, AL5 4HD
• Sold Jan 2008£980,000 | 5 Bed HouseBeechside, Byron Road, Harpenden, AL5 4ABBeechside, Byron Road, Harpenden, AL5 4AB

Byron Road, Harpenden, AL5 has a total of 19 addresses. According to our analysis of all the public data, 4, Byron Road, Harpenden is the 3rd largest and the 12th most expensive property on the street.

When compared to the postcode district it is £341k more expensive than the average property in AL5.

• 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

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