1, Byron Road, Harpenden occupies a 673 m² plot as recorded by HM Land Registry.

All 8 other houses in this postcode have recorded plot sizes, and this one ranks as the 2nd largest.

1, Byron Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Sep 2018.

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

1, Byron Road, Harpenden last changed hands on 5th December 2025, selling for £1,130,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 13.9% since December 2025.

• Sold Dec 2025£1,130,000
• Sold Jun 2019£950,000

Land Registry records and our Estate Agent network show 96 sales of comparable properties within 680 metres of 1, Byron Road, Harpenden since 2015.

Most recently, 25, Moreton End Lane, Harpenden, AL5 2EY, a freehold house, sold at £1,160,000 on the 27th April 2026.

Read more about house prices in AL5.

• Sold Apr 2026£1,160,000 | 4 Bed House25, Moreton End Lane, Harpenden, AL5 2EY25, Moreton End Lane, Harpenden, AL5 2EY
• Sold Oct 2025£1,200,000 | 4 Bed House46, Bloomfield Road, Harpenden, AL5 4DB46, Bloomfield Road, Harpenden, AL5 4DB
• Sold Apr 2025£1,140,000 | 4 Bed House40, Tennyson Road, Harpenden, AL5 4BB40, Tennyson Road, Harpenden, AL5 4BB
• Sold Feb 2025£1,100,000 | 4 Bed House1, Ox Lane, Harpenden, AL5 4HH1, Ox Lane, Harpenden, AL5 4HH
• Sold Jan 2025£1,150,000 | 4 Bed House16, Broadfields, Harpenden, AL5 2HJ16, Broadfields, Harpenden, AL5 2HJ
• Sold May 2024£982,700 | 4 Bed House1, Timbers Court, Harpenden, AL5 2QA1, Timbers Court, Harpenden, AL5 2QA
• Sold Feb 2024£1,175,000 | 4 Bed House48, Tennyson Road, Harpenden, AL5 4BB48, Tennyson Road, Harpenden, AL5 4BB
• Sold Jan 2024£923,000 | 4 Bed House4, Moreton End Close, Harpenden, AL5 2EZ4, Moreton End Close, Harpenden, AL5 2EZ
• Sold Aug 2023£1,150,000 | 4 Bed House3, Hillside Road, Harpenden, AL5 4BS3, Hillside Road, Harpenden, AL5 4BS
• Sold Dec 2021£1,204,000 | 4 Bed House2, Lambourn Gardens, Harpenden, AL5 4DQ2, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Sep 2021£1,200,000 | 4 Bed House45, Luton Road, Harpenden, AL5 2UB45, Luton Road, Harpenden, AL5 2UB
• Sold Jun 2021£1,150,000 | 4 Bed House21, Douglas Road, Harpenden, AL5 2EP21, Douglas Road, Harpenden, AL5 2EP
• Sold Feb 2021£1,065,000 | 4 Bed House6, Broadfields, Harpenden, AL5 2HJ6, Broadfields, Harpenden, AL5 2HJ
• Sold Nov 2020£990,000 | 4 Bed House17, Ambrose Lane, Harpenden, AL5 4AU17, Ambrose Lane, Harpenden, AL5 4AU
• Sold Sep 2020£1,100,000 | 4 Bed House6A, Moreton End Lane, Harpenden, AL5 2EX6A, Moreton End Lane, Harpenden, AL5 2EX
• Sold Apr 2019£922,500 | 4 Bed House35, Clarence Road, Harpenden, AL5 4AH35, Clarence Road, Harpenden, AL5 4AH
• Sold Sep 2018£440,000 | 4 Bed House17, Lambourn Gardens, Harpenden, AL5 4DQ17, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Oct 2017£875,000 | 4 Bed House28, Wordsworth Road, Harpenden, AL5 4AF28, Wordsworth Road, Harpenden, AL5 4AF
• Sold Sep 2016£825,000 | 4 Bed House4, Lambourn Gardens, Harpenden, AL5 4DQ4, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Aug 2015£805,000 | 4 Bed House26, Wordsworth Road, Harpenden, AL5 4AF26, Wordsworth Road, Harpenden, AL5 4AF

Our analysis of the public data ranks 1, Byron Road, Harpenden as the 15th largest and the 15th most expensive of the 19 addresses on Byron Road, Harpenden, AL5.

Against the AL5 postcode district average, it is £162k more expensive than the typical property.

• St Nicholas CofE VA Primary School

  600 m away
• Roundwood Primary School

  800 m away
• Harpenden Academy

  900 m away

• St George's School

  500 m away
• Roundwood Park School

  900 m away
• Sir John Lawes School

  1.0 km away

• Harpenden

  |

  1.0 km away
• Luton Airport Parkway

  |

  6.1 km away
• Luton

  |

  7.6 km away

Environment Agency data suggests this area has a Very Low risk of flooding.