According to data from HM Land Registry, 37, Hillside Road, Harpenden sits on a plot of 492 m².

We have plot size data on 17 out of 23 other houses in the postcode and 37, Hillside Road, Harpenden sits on the 4th largest plot.

37, Hillside Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 21 Jan 2023.

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

According to HM Land Registry, 37, Hillside Road, Harpenden was last sold on 1st July 2025 for £1,495,000 and was recorded as a freehold house.

The property has had 2 sales since 1995.

Since July 2025, the market for similar properties has dropped by 6.0%.

• Sold Jul 2025£1,495,000
• Sold Dec 2014£776,000

According to the Land Registry and our network of Estate Agents, there have been 133 sales of properties similar to 37, Hillside Road, Harpenden within a radius of 780 metres since 2009.

The most recent example is 12, Lambourn Gardens, Harpenden, AL5 4DQ, a freehold house which sold for £1,290,000 on the 31st October 2025.

Read more about house prices in AL5.

• Sold Oct 2025£1,290,000 | 4 Bed House12, Lambourn Gardens, Harpenden, AL5 4DQ12, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Jul 2025£1,305,000 | 4 Bed House12, Bloomfield Road, Harpenden, AL5 4DB12, Bloomfield Road, Harpenden, AL5 4DB
• 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 Mar 2024£1,287,500 | 4 Bed House49, Hillside Road, Harpenden, AL5 4BS49, Hillside Road, Harpenden, AL5 4BS
• Sold Mar 2024£1,050,000 | 4 Bed House15, Hillside Road, Harpenden, AL5 4BS15, Hillside Road, Harpenden, AL5 4BS
• Sold Jun 2023£1,310,000 | 4 Bed House33, Hillside Road, Harpenden, AL5 4BS33, Hillside Road, Harpenden, AL5 4BS
• Sold Mar 2023£1,507,500 | 4 Bed House21, Moreton End Lane, Harpenden, AL5 2EY21, Moreton End Lane, Harpenden, AL5 2EY
• Sold Dec 2022£1,515,000 | 4 Bed House39, Moreton End Lane, Harpenden, AL5 2HA39, Moreton End Lane, Harpenden, AL5 2HA
• Sold Aug 2022£1,291,101 | 4 Bed House20, Park Rise, Harpenden, AL5 3AL20, Park Rise, Harpenden, AL5 3AL
• Sold Jun 2021£1,150,000 | 5 Bed House5, Lambourn Gardens, Harpenden, AL5 4DQ5, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Oct 2020£1,170,000 | 4 Bed House22, Hillside Road, Harpenden, AL5 4BT22, Hillside Road, Harpenden, AL5 4BT
• Sold Sep 2018£1,000,000 | 4 Bed House22, Bloomfield Road, Harpenden, AL5 4DB22, Bloomfield Road, Harpenden, AL5 4DB
• Sold Nov 2016£996,050 | 4 Bed House14, Hillside Road, Harpenden, AL5 4BT14, Hillside Road, Harpenden, AL5 4BT
• Sold Feb 2014£815,000 | 4 Bed House45, Hillside Road, Harpenden, AL5 4BS45, Hillside Road, Harpenden, AL5 4BS
• Sold Jul 2011£825,000 | 4 Bed House31, Hillside Road, Harpenden, AL5 4BS31, Hillside Road, Harpenden, AL5 4BS
• Sold Jun 2011£682,000 | 4 Bed House29, Hillside Road, Harpenden, AL5 4BS29, Hillside Road, Harpenden, AL5 4BS
• Sold Jan 2011£735,000 | 4 Bed House21, Hillside Road, Harpenden, AL5 4BS21, Hillside Road, Harpenden, AL5 4BS
• Sold Nov 2009£580,000 | 4 Bed House34, Bloomfield Road, Harpenden, AL5 4DB34, Bloomfield Road, Harpenden, AL5 4DB
• Sold Nov 2009£675,000 | 4 Bed House47, Hillside Road, Harpenden, AL5 4BS47, Hillside Road, Harpenden, AL5 4BS

Hillside Road, Harpenden, AL5 has a total of 81 addresses. According to our analysis of all the public data, 37, Hillside Road, Harpenden is the 14th largest and the 11th most expensive property on the street.

When compared to the postcode district it is £356k 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.