Our Data Sources
46, Knowle Drive, Harpenden has 2 entries in the Land Registry, most recently in August 2014 and a single entry in the EPC database dated January 2015.
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.
Price Range & Condition
In very good condition, we estimate 46, Knowle Drive, Harpenden would be worth £677,319, with a potential rental value of £2,943 per month.
If substantial cosmetic improvements are needed, the estimated sale value falls to £599,911, with a rental value of £2,606 per month.
The extent to which decoration affects a property's value depends on its type, size and location.
Plot Size
46, Knowle Drive, Harpenden occupies a 204 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 12th largest.
Energy Efficiency
46, Knowle Drive, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Jan 2015.
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
46, Knowle Drive, Harpenden last changed hands on 22nd August 2014, selling for £357,500. 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 76.7% since August 2014.
- Sold Aug 2014£357,500
- Sold Jul 2007£289,950
Similar Properties Sold Nearby
Land Registry records and our Estate Agent network show 225 sales of comparable properties within 580 metres of 46, Knowle Drive, Harpenden since 2020.
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 Oct 2025£645,000 | 3 Bed House9, Tarrant Drive, Harpenden, AL5 1RP9, Tarrant Drive, Harpenden, AL5 1RP
- Sold Aug 2025£680,000 | 3 Bed House31, Cranbourne Drive, Harpenden, AL5 1RJ31, Cranbourne Drive, Harpenden, AL5 1RJ
- Sold Jul 2025£655,000 | 3 Bed House5, Tarrant Drive, Harpenden, AL5 1RP5, Tarrant Drive, Harpenden, AL5 1RP
- Sold Feb 2025£670,000 | 3 Bed House71, Broadstone Road, Harpenden, AL5 1RE71, Broadstone Road, Harpenden, AL5 1RE
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 £608,225, ranging from £569,078 to £711,947.
- 44 Knowle Drive
3 Bed House | 6 m | Est. Value: £569,078
- 42 Knowle Drive
3 Bed House | 12 m | Est. Value: £592,011
- 50 Knowle Drive
3 Bed House | 13 m | Est. Value: £569,078
- 40 Knowle Drive
3 Bed House | 18 m | Est. Value: £621,592
- 33 Tarrant Drive
3 Bed House | 27 m | Est. Value: £574,145
Location Comparison
Our analysis of the public data ranks 46, Knowle Drive, Harpenden as the 7th largest and the 9th most expensive of the 34 addresses on Knowle Drive, Harpenden, AL5.
Against the AL5 postcode district average, it is £325k less expensive than the typical property.
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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.












