Our Data Sources
14, Knowle Drive, Harpenden has 3 entries in the Land Registry, most recently in December 2020 and a single entry in the EPC database dated February 2026.
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
The condition of a property plays an important role in determining its value, with the degree of impact varying by property type, size and location.
For 14, Knowle Drive, Harpenden, we estimate a market value of £597,532 and a rental value of £2,675 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £529,243 and £2,369 per month respectively.
Plot Size
HM Land Registry records the plot of land for 14, Knowle Drive, Harpenden as measuring 187 m2.
That makes it the 16th largest plot in the postcode, where 32 of the 34 other houses have recorded plot data.
Energy Efficiency
14, Knowle Drive, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 06 Feb 2026.
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
The most recent sale of 14, Knowle Drive, Harpenden completed on 4th December 2020 at £470,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 3 times.
Values of comparable properties have risen by 41.3% over the period since December 2020.
- Sold Dec 2020£470,000
- Sold Sep 2011£305,000
- Sold Aug 2007£280,000
Similar Properties Sold Nearby
Since 2017 194 properties similar to 14, Knowle Drive, Harpenden have sold within a radius of 590 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 4th November 2025, was 6, Broadstone Road, Harpenden, AL5 1RG, a freehold house which sold for £625,000.
Read more about house prices in AL5.
- Sold Nov 2025£625,000 | 3 Bed House6, Broadstone Road, Harpenden, AL5 1RG6, Broadstone Road, Harpenden, AL5 1RG
- Sold Dec 2024£595,000 | 3 Bed House8, St. Michaels Close, Harpenden, AL5 1EW8, St. Michaels Close, Harpenden, AL5 1EW
- Sold Nov 2024£535,000 | 3 Bed House24, Broadstone Road, Harpenden, AL5 1RG24, Broadstone Road, Harpenden, AL5 1RG
- Sold Aug 2024£550,000 | 3 Bed House50, Knowle Drive, Harpenden, AL5 1RW50, Knowle Drive, Harpenden, AL5 1RW
- Sold Jul 2024£550,000 | 3 Bed House14, Tarrant Drive, Harpenden, AL5 1RP14, Tarrant Drive, Harpenden, AL5 1RP
Nearby is defined as the radius comprising the nearest 2,000 addresses.
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Explore Nearby Properties
The surrounding properties have an average estimated value of £584,641, ranging from £501,661 to £772,019.
- 16 Knowle Drive
3 Bed House | 6 m | Est. Value: £572,948
- 10 Knowle Drive
4 Bed House | 16 m | Est. Value: £772,019
- 8 Knowle Drive
3 Bed House | 19 m | Est. Value: £632,417
- 6 Knowle Drive
3 Bed House | 23 m | Est. Value: £569,078
- 4 Knowle Drive
3 Bed House | 28 m | Est. Value: £621,592
Location Comparison
Of the 34 addresses on Knowle Drive, Harpenden, AL5, 14, Knowle Drive, Harpenden comes out as the 24th largest and the 27th most expensive in our analysis of the public data.
It is also £401k less expensive than the average property across the AL5 district.
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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
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
The flood risk here is rated Very Low, based on Environment Agency data.
