Our Data Sources
4, Knowle Drive, Harpenden has 21 entries in the Land Registry, most recently in October 2012 and a single entry in the EPC database dated July 2012.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 4 out of 5 and is considered of high accuracy.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
In very good condition, we estimate 4, Knowle Drive, Harpenden would be worth £652,672, with a potential rental value of £2,851 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £578,081, with a rental value of £2,525 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
4, Knowle Drive, Harpenden occupies a 153 m2 plot as recorded by HM Land Registry.
Of the 34 other houses in this postcode, 32 have recorded plot sizes, and this one ranks as the 30th largest.
Energy Efficiency
4, Knowle Drive, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 17 Jul 2012.
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
4, Knowle Drive, Harpenden last changed hands on 12th October 2012, selling for £341,000. 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 107.7% since October 2012.
- Sold Oct 2012£341,000
- Sold Apr 2005£240,000
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 217 sales of comparable properties within 600 metres of 4, Knowle Drive, Harpenden since 2021.
Most recently, 15, Fovant Close, Harpenden, AL5 1RN, a freehold house, sold at £580,000 on the 20th January 2026.
Read more about house prices in AL5.
- Sold Jan 2026£580,000 | 3 Bed House15, Fovant Close, Harpenden, AL5 1RN15, Fovant Close, Harpenden, AL5 1RN
- Sold Jan 2026£610,000 | 3 Bed House4, Ravenscroft, Harpenden, AL5 1ST4, Ravenscroft, Harpenden, AL5 1ST
- Sold Nov 2025£625,000 | 3 Bed House6, Broadstone Road, Harpenden, AL5 1RG6, Broadstone Road, Harpenden, AL5 1RG
- Sold Oct 2025£645,000 | 3 Bed House9, Tarrant Drive, Harpenden, AL5 1RP9, Tarrant Drive, Harpenden, AL5 1RP
- Sold Jul 2025£655,000 | 3 Bed House5, Tarrant Drive, Harpenden, AL5 1RP5, Tarrant Drive, Harpenden, AL5 1RP
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 £619,312, ranging from £558,416 to £785,815.
- 2 Knowle Drive
3 Bed House | 6 m | Est. Value: £572,948
- 6 Knowle Drive
3 Bed House | 6 m | Est. Value: £569,078
- 8 Knowle Drive
3 Bed House | 12 m | Est. Value: £632,417
- 10 Knowle Drive
4 Bed House | 18 m | Est. Value: £772,019
- 14 Knowle Drive
3 Bed House | 28 m | Est. Value: £569,078
Location Comparison
Our analysis of the public data ranks 4, Knowle Drive, Harpenden as the 10th largest and the 13th most expensive of the 34 addresses on Knowle Drive, Harpenden, AL5.
Against the AL5 postcode district average, it is £349k less expensive than the typical property.
More reading links
Schools Nearby
- The Grove Infant and Nursery School400 m away
- The Grove Junior School400 m away
- High Beeches Primary School1.0 km away
- Sir John Lawes School2.0 km away
- Katherine Warington School2.0 km away
- St George's School2.2 km away
More reading links
Public Transport Nearby
- Harpenden|1.4 km away
- St Albans City|6.1 km away
- St Albans Abbey|6.7 km away
Available Internet Speeds
Ofcom's latest figures show ultrafast broadband available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
Environment Agency data suggests this area has a Very Low risk of flooding.
