24, BARNS DENE, HARPENDEN, AL5 2HQ - £1,000,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

24 BARNS DENE is a small extended detached house of 144m², built sometime between 1950 and 1966, which could now be worth an estimated £1,392,179. It was last sold for £1,000,000 in July 2015, which was around 12% above the average July 2015 detached price in the St Albans local authority area. The most recent EPC inspection was September 2014, where the current energy rating was F, and the potential energy rating was C.

24 BARNS DENE Sold Prices

Land registry data shows two sales for 24 BARNS DENE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the St Albans local authority area for the corresponding sale date. Both of the two 24 BARNS DENE sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

Date	Price	HPI Price	Variation from HPI
2015 7 JUL	£1,000,000	£893,944	12% above HPI
2004 25 JUN	£595,000	£507,833	17% above HPI

24 BARNS DENE Price Paid vs. HPI Average

The below graph shows the average detached house price in the St Albans local authority area over time, sourced from the HPI. The two 24 BARNS DENE sales from June 2004 and July 2015 have been plotted on the graph. A line has been extrapolated to show what the value of the property might have been over time, following each sale, had it maintained the same margin above or below the HPI (as a percentage). For example, the June 2004 sale was for 17% above the HPI. So the extrapolation line tracks at 17% above the HPI over time, until the July 2015 sale, where it falls to 12% above the HPI. The line then continues to track at 12% above the HPI.

What might 24 BARNS DENE be worth now?

24 BARNS DENE might now be worth an estimated £1,392,179.

This is based on house price inflation of 39.2%, between July 2015 and December 2024, for detached houses, in the St Albans local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 39.2% inflationary increase is applied to the most recent sale price for 24 BARNS DENE of £1,000,000 on 7th July 2015. For the value to have increased from £1,000,000 to £1,392,179 over the eight years and seven months to December 2024, the following assumptions must hold true:

• The value of 24 BARNS DENE has moved in line with the HPI for detached houses in the St Albans local authority area.
• The July 2015 sale price of £1,000,000 represented a fair market value for the property.
• The size, condition, and specification of 24 BARNS DENE has not materially changed since July 2015.

How Large is 24 BARNS DENE?

24 BARNS DENE is 144m², which includes one extension, according to the EPC inspection conducted in September 2014. This puts it in the smallest 40% of detached houses houses in Harpenden, based on EPC data. The below chart shows the distribution of detached houses houses by size in Harpenden, and where 24 BARNS DENE lies on this distribution: 37% of detached houses houses are smaller than 24 BARNS DENE, and 63% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

24 BARNS DENE: Plot and Title Map

24 BARNS DENE sits on a plot of roughly 0.156 of an acre, or 630m². The below map shows the location of 24 BARNS DENE, an approximate outline of the building(s), and the indicative extent of the property. The plot extent is a Land Registry INSPIRE Index Polygon, and it is important to note that a title may include more than one polygon, whereas only one polygon is shown on the map (the polygon which intersects with the position of 24 BARNS DENE). The full extent of the land contained in any registered title can only be identified from the individual title plan. The maps on this page should not be relied upon to establish the extent of a title.

Where is 24 BARNS DENE?

24 BARNS DENE is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 24 on BARNS DENE.