According to data from HM Land Registry, 1, Hillside Road, Harpenden sits on a plot of 412 m².

We have plot size data on 17 out of 23 other houses in the postcode and 1, Hillside Road, Harpenden sits on the 14th largest plot.

1, Hillside Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 10 May 2013.

The property is not connected to mains gas and has partial double glazing. It is heated using a boiler and radiators (mains gas).

According to HM Land Registry, 1, Hillside Road, Harpenden was last sold on 28th February 2023 for £1,355,000 and was recorded as a freehold house.

The property has had 3 sales since 1995.

Since February 2023, the market for similar properties has risen by 4.1%.

• Sold Feb 2023£1,355,000
• Sold Sep 2013£892,500
• Sold Mar 2001£370,000

According to the Land Registry and our network of Estate Agents, there have been 134 sales of properties similar to 1, Hillside Road, Harpenden within a radius of 760 metres since 2013.

The most recent example is 26, Roundwood Lane, Harpenden, AL5 3BZ, a freehold house which sold for £1,530,000 on the 29th January 2026.

Read more about house prices in AL5.

• Sold Jan 2026£1,530,000 | 5 Bed House26, Roundwood Lane, Harpenden, AL5 3BZ26, Roundwood Lane, Harpenden, AL5 3BZ
• Sold Dec 2025£1,650,000 | 5 Bed House10, Wordsworth Road, Harpenden, AL5 4AF10, Wordsworth Road, Harpenden, AL5 4AF
• Sold Sep 2025£1,860,000 | 5 Bed House14, Bloomfield Road, Harpenden, AL5 4DB14, Bloomfield Road, Harpenden, AL5 4DB
• Sold Jul 2025£1,305,000 | 4 Bed House12, Bloomfield Road, Harpenden, AL5 4DB12, Bloomfield Road, Harpenden, AL5 4DB
• Sold Apr 2025£1,370,000 | 5 Bed House43A, Moreton End Lane, Harpenden, AL5 2HA43A, Moreton End Lane, Harpenden, AL5 2HA
• Sold Mar 2025£1,615,000 | 5 Bed House45A, Moreton End Lane, Harpenden, AL5 2HA45A, Moreton End Lane, Harpenden, AL5 2HA
• Sold Dec 2024£1,540,000 | 5 Bed House22, Roundwood Lane, Harpenden, AL5 3BZ22, Roundwood Lane, Harpenden, AL5 3BZ
• Sold Nov 2024£1,300,000 | 4 Bed House12A, Bloomfield Road, Harpenden, AL5 4DB12A, Bloomfield Road, Harpenden, AL5 4DB
• Sold Apr 2024£1,255,000 | 5 Bed House11, Lambourn Gardens, Harpenden, AL5 4DQ11, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Aug 2023£1,325,000 | 5 Bed House45, Moreton End Lane, Harpenden, AL5 2HA45, Moreton End Lane, Harpenden, AL5 2HA
• Sold Mar 2023£1,510,000 | 5 Bed House18, Roundwood Park, Harpenden, AL5 3AB18, Roundwood Park, Harpenden, AL5 3AB
• Sold Oct 2022£1,435,225 | 5 Bed House1, Park Rise, Harpenden, AL5 3AH1, Park Rise, Harpenden, AL5 3AH
• Sold Jun 2022£1,510,000 | 5 Bed House48, Bloomfield Road, Harpenden, AL5 4DB48, Bloomfield Road, Harpenden, AL5 4DB
• Sold Aug 2021£1,410,500 | 5 Bed House47, Moreton End Lane, Harpenden, AL5 2HA47, Moreton End Lane, Harpenden, AL5 2HA
• Sold Nov 2020£1,400,000 | 5 Bed House18, Hillside Road, Harpenden, AL5 4BT18, Hillside Road, Harpenden, AL5 4BT
• Sold Feb 2018£1,300,000 | 5 Bed House42, Bloomfield Road, Harpenden, AL5 4DB42, Bloomfield Road, Harpenden, AL5 4DB
• Sold Sep 2016£1,110,000 | 5 Bed House27, Moreton End Lane, Harpenden, AL5 2EY27, Moreton End Lane, Harpenden, AL5 2EY
• Sold Sep 2016£975,000 | 5 Bed House18, Bloomfield Road, Harpenden, AL5 4DB18, Bloomfield Road, Harpenden, AL5 4DB
• Sold Feb 2014£815,000 | 4 Bed House45, Hillside Road, Harpenden, AL5 4BS45, Hillside Road, Harpenden, AL5 4BS
• Sold Jun 2013£1,115,000 | 5 Bed House9, Moreton End Lane, Harpenden, AL5 2EY9, Moreton End Lane, Harpenden, AL5 2EY

Hillside Road, Harpenden, AL5 has a total of 81 addresses. According to our analysis of all the public data, 1, Hillside Road, Harpenden is the 7th largest and the 5th most expensive property on the street.

When compared to the postcode district it is £538k more expensive than the average property in AL5.

• Roundwood Primary School

  800 m away
• The Lea Primary School and Nursery

  800 m away
• St Nicholas CofE VA Primary School

  900 m away

• St George's School

  700 m away
• Roundwood Park School

  800 m away
• Sir John Lawes School

  1.2 km away

• Harpenden

  |

  1.4 km away
• Luton Airport Parkway

  |

  5.8 km away
• Luton

  |

  7.3 km away

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