5, HIGH RIDGE, HARPENDEN, AL5 3LL - £750,000

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

5 HIGH RIDGE is a very small detached house of 86m², built sometime between 1967 and 1975, which could now be worth an estimated £888,045. It was last sold for £750,000 in July 2018, which was around 28% below the average July 2018 detached price in the St Albans local authority area. The most recent EPC inspection was February 2009, where the current energy rating was D, and the potential energy rating was D.

5 HIGH RIDGE Sold Prices

Land registry data shows two sales for 5 HIGH RIDGE 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 5 HIGH RIDGE sales were for below 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
2018 23 JUL	£750,000	£1,045,260	28% below HPI
2009 26 JUN	£425,000	£553,228	23% below HPI

5 HIGH RIDGE 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 5 HIGH RIDGE sales from June 2009 and July 2018 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 2009 sale was for 23% below the HPI. So the extrapolation line tracks at 23% below the HPI over time, until the July 2018 sale, where it falls to 28% below the HPI. The line then continues to track at 28% below the HPI.

What might 5 HIGH RIDGE be worth now?

5 HIGH RIDGE might now be worth an estimated £888,045.

This is based on house price inflation of 18.4%, between July 2018 and February 2025, 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 18.4% inflationary increase is applied to the most recent sale price for 5 HIGH RIDGE of £750,000 on 23rd July 2018. For the value to have increased from £750,000 to £888,045 over the seven years and five months to February 2025, the following assumptions must hold true:

• The value of 5 HIGH RIDGE has moved in line with the HPI for detached houses in the St Albans local authority area.
• The July 2018 sale price of £750,000 represented a fair market value for the property.
• The size, condition, and specification of 5 HIGH RIDGE has not materially changed since July 2018.

How Large is 5 HIGH RIDGE?

5 HIGH RIDGE is 86m² according to the EPC inspection conducted in February 2009. This puts it in the smallest 10% 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 5 HIGH RIDGE lies on this distribution: 4% of detached houses houses are smaller than 5 HIGH RIDGE, and 96% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

5 HIGH RIDGE: Plot and Title Map

5 HIGH RIDGE sits on a plot of roughly 0.114 of an acre, or 460m². The below map shows the location of 5 HIGH RIDGE, 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 5 HIGH RIDGE). 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 5 HIGH RIDGE?

5 HIGH RIDGE is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 5 on HIGH RIDGE.