55, PARK AVENUE NORTH, HARPENDEN, AL5 2EE - £5,000,000

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

55 PARK AVENUE NORTH is a very large detached house of 717m², which could now be worth an estimated £5,934,925. It was last sold for £5,000,000 in August 2020, which was around 377% above the average August 2020 detached price in the St Albans local authority area. The most recent EPC inspection was June 2015, where the current energy rating was B, and the potential energy rating was B.

55 PARK AVENUE NORTH Sold Prices

Land registry data shows two sales for 55 PARK AVENUE NORTH 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 55 PARK AVENUE NORTH 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
2020 21 AUG	£5,000,000	£1,048,480	377% above HPI
2012 16 NOV	£2,200,000	£722,079	205% above HPI

55 PARK AVENUE NORTH 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 55 PARK AVENUE NORTH sales from November 2012 and August 2020 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 November 2012 sale was for 205% above the HPI. So the extrapolation line tracks at 205% above the HPI over time, until the August 2020 sale, where it rises to 377% above the HPI. The line then continues to track at 377% above the HPI.

What might 55 PARK AVENUE NORTH be worth now?

55 PARK AVENUE NORTH might now be worth an estimated £5,934,925.

This is based on house price inflation of 18.7%, between August 2020 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 18.7% inflationary increase is applied to the most recent sale price for 55 PARK AVENUE NORTH of £5,000,000 on 21st August 2020. For the value to have increased from £5,000,000 to £5,934,925 over the three years and eight months to December 2024, the following assumptions must hold true:

• The value of 55 PARK AVENUE NORTH has moved in line with the HPI for detached houses in the St Albans local authority area.
• The August 2020 sale price of £5,000,000 represented a fair market value for the property.
• The size, condition, and specification of 55 PARK AVENUE NORTH has not materially changed since August 2020.

How Large is 55 PARK AVENUE NORTH?

55 PARK AVENUE NORTH is 717m² according to the EPC inspection conducted in June 2015. This puts it in the largest 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 55 PARK AVENUE NORTH lies on this distribution: More than 99% of detached houses houses are smaller than 55 PARK AVENUE NORTH, and less than 1% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

55 PARK AVENUE NORTH: Plot and Title Map

55 PARK AVENUE NORTH sits on a plot of roughly 0.514 of an acre, or 2,082m². The below map shows the location of 55 PARK AVENUE NORTH, 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 55 PARK AVENUE NORTH). 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 55 PARK AVENUE NORTH?

55 PARK AVENUE NORTH is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 55 on PARK AVENUE NORTH.