Our Data Sources
26, Knowle Drive, Harpenden has 31 entries in the Land Registry, most recently in June 2015 and a single entry in the EPC database dated March 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.
1Sales dated prior to 2007 are shown, but are not used in our calculations.
Price Range & Condition
Decorative condition can have a big effect on a property's value and this effect varies depending on the type, size and location of the property.
If 26, Knowle Drive, Harpenden is in very good condition we estimate a sale value of £670,008 and a rental value of £2,942 per month.
However, if the property needs a lot of cosmetic work we estimate a sale value of £593,436 and a rental value of £2,606 per month.
Plot Size
According to data from HM Land Registry, 26, Knowle Drive, Harpenden sits on a plot of 203 m2.
We have plot size data on 32 out of 34 other houses in the postcode and 26, Knowle Drive, Harpenden sits on the 13th largest plot.
Energy Efficiency
26, Knowle Drive, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 25 Mar 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
According to HM Land Registry, 26, Knowle Drive, Harpenden was last sold on 26th June 2015 for £400,000 and was recorded as a freehold house.
The property has had 3 sales since 1995.
Since June 2015, the market for similar properties has risen by 66.2%.
- Sold Jun 2015£400,000
- Sold Jul 2008£312,500
- Sold May 2004£246,000
Similar Properties Sold Nearby
According to the Land Registry and our network of Estate Agents, there have been 261 sales of properties similar to 26, Knowle Drive, Harpenden within a radius of 580 metres since 2021.
The most recent example is 6, Broadstone Road, Harpenden, AL5 1RG, a freehold house which sold for £625,000 on the 4th November 2025.
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 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
- Sold Feb 2025£670,000 | 3 Bed House71, Broadstone Road, Harpenden, AL5 1RE71, Broadstone Road, Harpenden, AL5 1RE
- Sold Dec 2024£595,000 | 3 Bed House8, St. Michaels Close, Harpenden, AL5 1EW8, St. Michaels Close, Harpenden, AL5 1EW
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 £572,531, ranging from £501,661 to £748,658.
- 30 Knowle Drive
3 Bed House | 13 m | Est. Value: £557,348
- 32 Knowle Drive
3 Bed House | 18 m | Est. Value: £561,279
- 19A Kingcroft Road
3 Bed House | 30 m | Est. Value: £623,153
- 16 Knowle Drive
3 Bed House | 30 m | Est. Value: £572,948
- 19 Kingcroft Road
3 Bed House | 31 m | Est. Value: £626,814
Location Comparison
Knowle Drive, Harpenden, AL5 has a total of 34 addresses. According to our analysis of all the public data, 26, Knowle Drive, Harpenden is the 11th largest and the 10th most expensive property on the street.
When compared to the postcode district it is £332k less expensive than the average property in AL5.
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
According to recent data from Ofcom, Ultrafast Broadband is available in this area.
According to recent data from Ofcom, Ultrafast Broadband available in this area.
Risk of Flooding
According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.












