HM Land Registry records the plot of land for 4, Hillside Road, Harpenden as measuring 479 m².

That makes it the 6th largest plot in the postcode, where all 14 other houses have recorded plot data.

4, Hillside Road, Harpenden has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 25 Sep 2023.

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

The most recent sale of 4, Hillside Road, Harpenden completed on 16th August 2024 at £985,000 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 2.7% over the period since August 2024.

• Sold Aug 2024£985,000

Since 2011 145 properties similar to 4, Hillside Road, Harpenden have sold within a radius of 750 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 12th December 2025, was 13, Park Rise, Harpenden, AL5 3AH, a freehold house which sold for £835,000.

Read more about house prices in AL5.

• Sold Dec 2025£835,000 | 4 Bed House13, Park Rise, Harpenden, AL5 3AH13, Park Rise, Harpenden, AL5 3AH
• Sold Oct 2025£1,290,000 | 4 Bed House12, Lambourn Gardens, Harpenden, AL5 4DQ12, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Oct 2025£1,200,000 | 4 Bed House46, Bloomfield Road, Harpenden, AL5 4DB46, Bloomfield Road, Harpenden, AL5 4DB
• Sold Sep 2025£1,160,000 | 4 Bed House4, Park Mount, Harpenden, AL5 3AR4, Park Mount, Harpenden, AL5 3AR
• Sold Mar 2024£1,050,000 | 4 Bed House15, Hillside Road, Harpenden, AL5 4BS15, Hillside Road, Harpenden, AL5 4BS
• Sold Feb 2024£1,160,000 | 4 Bed House4, Park Rise, Harpenden, AL5 3AH4, Park Rise, Harpenden, AL5 3AH
• Sold Nov 2023£735,000 | 4 Bed House20, Park Hill, Harpenden, AL5 3AT20, Park Hill, Harpenden, AL5 3AT
• Sold Dec 2021£1,204,000 | 4 Bed House2, Lambourn Gardens, Harpenden, AL5 4DQ2, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Oct 2021£1,150,000 | 4 Bed House38, Park Mount, Harpenden, AL5 3AR38, Park Mount, Harpenden, AL5 3AR
• Sold Oct 2019£840,000 | 4 Bed House40, Park Mount, Harpenden, AL5 3AR40, Park Mount, Harpenden, AL5 3AR
• Sold Aug 2019£800,000 | 4 Bed House89, Luton Road, Harpenden, AL5 3BA89, Luton Road, Harpenden, AL5 3BA
• Sold Jul 2019£675,000 | 4 Bed House14, Park Rise, Harpenden, AL5 3AH14, Park Rise, Harpenden, AL5 3AH
• Sold Sep 2018£1,000,000 | 4 Bed House22, Bloomfield Road, Harpenden, AL5 4DB22, Bloomfield Road, Harpenden, AL5 4DB
• Sold Sep 2018£440,000 | 4 Bed House17, Lambourn Gardens, Harpenden, AL5 4DQ17, Lambourn Gardens, Harpenden, AL5 4DQ
• Sold Sep 2018£855,000 | 4 Bed House30, Park Mount, Harpenden, AL5 3AR30, Park Mount, Harpenden, AL5 3AR
• Sold Jan 2013£725,000 | 4 Bed House27, Hillside Road, Harpenden, AL5 4BS27, Hillside Road, Harpenden, AL5 4BS
• Sold Aug 2012£640,000 | 4 Bed House6, Bloomfield Road, Harpenden, AL5 4DB6, Bloomfield Road, Harpenden, AL5 4DB
• Sold Jul 2011£825,000 | 4 Bed House31, Hillside Road, Harpenden, AL5 4BS31, Hillside Road, Harpenden, AL5 4BS
• Sold Jul 2011£700,000 | 4 Bed House32, Bloomfield Road, Harpenden, AL5 4DB32, Bloomfield Road, Harpenden, AL5 4DB
• Sold Jun 2011£682,000 | 4 Bed House29, Hillside Road, Harpenden, AL5 4BS29, Hillside Road, Harpenden, AL5 4BS

Of the 81 addresses on Hillside Road, Harpenden, AL5, 4, Hillside Road, Harpenden comes out as the 26th largest and the 31st most expensive in our analysis of the public data.

It is also £124k more expensive than the average property across the AL5 district.

• 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

  |

  1.3 km away
• Luton Airport Parkway

  |

  5.8 km away
• Luton

  |

  7.3 km away

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