Our Data Sources
42, Cowper Road, Harpenden has 51 entries in the Land Registry , most recently in June 2025 and a single entry in the EPC database dated April 2023.
We combine this information with that of neighbouring properties to estimate the property attributes and values.
The local information is scored as 5 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 42, Cowper Road, Harpenden, we estimate a market value of £1,275,402 and a rental value of £3,890 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £1,129,642 and £3,445 per month respectively.
Plot Size
HM Land Registry records the plot of land for 42, Cowper Road, Harpenden as measuring 215 m2.
That makes it the 9th largest plot in the postcode, where all 33 other houses have recorded plot data.
Energy Efficiency
42, Cowper Road, Harpenden has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 05 Apr 2023.
The property is connected to mains gas and has some double glazing. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 42, Cowper Road, Harpenden completed on 2nd June 2025 at £1,300,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold 5 times.
Values of comparable properties have risen by 7.0% over the period since June 2025.
- Sold Jun 2025£1,300,000
- Sold Dec 2017£988,000
- Sold Jun 2010£775,000
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 42, Cowper Road, Harpenden have sold within a radius of 600 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 24th April 2025, was 2A, Kipling Way, Harpenden, AL5 4XG, a freehold house which sold for £1,500,000.
Read more about house prices in AL5.
- Sold Apr 2025£1,500,000 | 5 Bed House2A, Kipling Way, Harpenden, AL5 4XG2A, Kipling Way, Harpenden, AL5 4XG
- Sold Feb 2025£1,375,000 | 4 Bed House2, Cornwall Road, Harpenden, AL5 4TH2, Cornwall Road, Harpenden, AL5 4TH
- Sold Nov 2023£1,150,000 | 4 Bed House15, Cowper Road, Harpenden, AL5 5NF15, Cowper Road, Harpenden, AL5 5NF
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 101 addresses on Cowper Road, Harpenden, AL5, 42, Cowper Road, Harpenden comes out as the 8th largest and the 16th most expensive in our analysis of the public data.
It is also £255k more expensive than the average property across the AL5 district.
More reading links
Schools Nearby
- 400mHarpenden Academy
- 500mCrabtree Infants' School
- 500mCrabtree Junior School
- 700mSir John Lawes School
- 800mSt George's School
- 1.3kmKatherine Warington School
More reading links
Public Transport Nearby
- 300mHarpenden
- 7.1kmLuton Airport Parkway
- 7.5kmSt Albans City
Available Internet Speeds
Broadband here reaches ultrafast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Ultrafast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.












