Our Data Sources
18, Hillside Road, Harpenden has 2 entries in the Land Registry, most recently in November 2020 and a single entry in the EPC database dated October 2016.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 3 out of 5 and is considered of medium accuracy.
Price Range & Condition
In very good condition, we estimate 18, Hillside Road, Harpenden would be worth £1,411,015, with a potential rental value of £4,028 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £1,249,756, with a rental value of £3,568 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
18, Hillside Road, Harpenden occupies a 577 m2 plot as recorded by HM Land Registry.
All 14 other houses in this postcode have recorded plot sizes, and this one ranks as the 4th largest.
Energy Efficiency
18, Hillside Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 14 Oct 2016.
The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).
Sold Prices
18, Hillside Road, Harpenden last changed hands on 4th November 2020, selling for £1,400,000. 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 risen by 19.3% since November 2020.
- Sold Nov 2020£1,400,000
- Sold Mar 2012£900,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 121 sales of comparable properties within 770 metres of 18, Hillside Road, Harpenden since 2012.
Most recently, 26, Roundwood Lane, Harpenden, AL5 3BZ, a freehold house, sold at £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 Dec 2024£1,540,000 | 5 Bed House22, Roundwood Lane, Harpenden, AL5 3BZ22, Roundwood Lane, Harpenden, AL5 3BZ
Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Explore Nearby Properties
The surrounding properties have an average estimated value of £1,262,419, ranging from £977,276 to £1,851,377.
- 20 Hillside Road
4 Bed House | 9 m | Est. Value: £977,276
- 22 Hillside Road
4 Bed House | 19 m | Est. Value: £1,199,406
- 14 Hillside Road
4 Bed House | 23 m | Est. Value: £1,154,490
- 1 Hillside View Hillside Road
5 Bed House | 27 m | Est. Value: £1,391,217
- 2 Hillside View Hillside Road
5 Bed House | 35 m | Est. Value: £1,360,978
Location Comparison
Our analysis of the public data ranks 18, Hillside Road, Harpenden as the 8th largest and the 10th most expensive of the 81 addresses on Hillside Road, Harpenden, AL5.
Against the AL5 postcode district average, it is £377k more expensive than the typical property.
More reading links
Schools Nearby
- Roundwood Primary School800 m away
- The Lea Primary School and Nursery800 m away
- St Nicholas CofE VA Primary School900 m away
- St George's School700 m away
- Roundwood Park School800 m away
- Sir John Lawes School1.2 km away
More reading links
Public Transport Nearby
- Harpenden|1.3 km away
- Luton Airport Parkway|5.8 km away
- Luton|7.3 km away
Available Internet Speeds
Ofcom's latest figures show superfast broadband available in this area.
According to recent data from Ofcom, Superfast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.












