20, Thornbury
20, Thornbury
Description & Estimates
20, Thornbury, Harpenden is recorded publicly as a mid-century freehold house across 861 ft2 of internal area, sitting on a 174 m2 plot.
Locally, houses of this size normally have 3 bedrooms with a garden.
Our estimate of the sale value of 20, Thornbury, Harpenden is £586,568 and its rental estimate is £2,550 per month, given the available information and assuming reasonable condition.
Thornbury, Harpenden, AL5 falls within the AL5 postal district, in the borough of St. Albans.
Our Data Sources
20, Thornbury, Harpenden has 2 entries in the Land Registry , most recently in November 2025 and a single entry in the EPC database dated August 2025.
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 20, Thornbury, Harpenden, we estimate a market value of £615,897 and a rental value of £2,678 per month when presented in very good decorative order. Should the property require extensive cosmetic improvement, those figures would reduce to £545,508 and £2,372 per month respectively.
Recent Market Change
Over the last year, 20, Thornbury, Harpenden has seen its estimated sale value rise by £2,349 (0.4%) and its estimated rental value move up by £86 per month (3.4%). This results in an estimated gross rental yield of 5.2%.
Plot Size
HM Land Registry records the plot of land for 20, Thornbury, Harpenden as measuring 174 m2.
That makes it the 28th largest plot in the postcode, where all 30 other houses have recorded plot data.
Energy Efficiency
20, Thornbury, Harpenden has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 07 Aug 2025.
The property is connected to mains gas and has fully double glazed windows. It is heated using Boiler and radiators, mains gas.
Sold Prices
The most recent sale of 20, Thornbury, Harpenden completed on 11th November 2025 at £595,000 and was recorded by HM Land Registry as a freehold house.
Since 1995 the property has sold twice.
Values of comparable properties have risen by 0.6% over the period since November 2025.
- Sold Nov 2025£595,000
- Sold Feb 2014£390,050
Similar Properties Sold Nearby
Over the past 2 years 3 properties similar to 20, Thornbury, Harpenden have sold within a radius of 710 metres, per the Land Registry and our network of Estate Agents.
The latest, on the 19th February 2026, was 4, Brampton Close, Harpenden, AL5 5SL, a freehold house which sold for £550,000.
Read more about house prices in AL5.
•Nearby is defined as the radius comprising the nearest 2,000 addresses.
More reading links
Location Comparison
Of the 30 addresses on Thornbury, Harpenden, AL5, 20, Thornbury, Harpenden comes out as the 25th largest and the 26th most expensive in our analysis of the public data.
It is also £373k less expensive than the average property across the AL5 district.
More reading links
Schools Nearby
- 200mHigh Beeches Primary School
- 200mCrabtree Infants' School
- 200mCrabtree Junior School
- 1.0kmKatherine Warington School
- 1.0kmSir John Lawes School
- 1.3kmSt George's School
More reading links
Public Transport Nearby
From 20, Thornbury, Harpenden, the nearest station is Harpenden, 900 metres away.
- 900mHarpenden
- 7.2kmSt Albans City
- 7.6kmLuton Airport Parkway
Available Internet Speeds
Broadband here reaches superfast speeds, based on recent Ofcom data.
According to recent data from Ofcom, Superfast broadband is available in the area.
Risk of Flooding
The flood risk here is rated very low, based on Environment Agency data.
