12, GILPIN GREEN, HARPENDEN, AL5 5NR - £1,700,000

Based on the December 2024 Price Paid Data (released on 29th January 2025), the November 2024 House Price Index (released on 15th January 2025), and the December 2024 Energy Performance of Buildings Data (released on 31st January 2025). Sources

12 GILPIN GREEN is a large extended detached house of 206m², built sometime between 1967 and 1975. It was last sold for £1,700,000 in February 2023, which was around 50% above the average February 2023 detached price in the St Albans local authority area. The most recent EPC inspection was April 2022, where the current energy rating was D, and the potential energy rating was C.

12 GILPIN GREEN Sold Prices

Land registry data shows two sales for 12 GILPIN GREEN 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. One of the two 12 GILPIN GREEN sales was for above the average price, whilst the other was 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
2023 24 FEB	£1,700,000	£1,132,910	50% above HPI
1996 9 AUG	£166,000	£181,617	9% below HPI

12 GILPIN GREEN 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 12 GILPIN GREEN sales from August 1996 and February 2023 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 August 1996 sale was for 9% below the HPI. So the extrapolation line tracks at 9% below the HPI over time, until the February 2023 sale, where it rises to 50% above the HPI. The line then continues to track at 50% above the HPI.

How Large is 12 GILPIN GREEN?

12 GILPIN GREEN is 206m², which includes three extensions, according to the EPC inspection conducted in April 2022. This puts it in the largest 40% of detached houses in Harpenden, based on EPC data. The below chart shows the distribution of detached houses by size in Harpenden, and where 12 GILPIN GREEN lies on this distribution: 68% of detached houses are smaller than 12 GILPIN GREEN, and 31% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

12 GILPIN GREEN: Plot and Title Map

12 GILPIN GREEN sits on a plot of roughly 0.133 of an acre, or 536m². The below map shows the location of 12 GILPIN GREEN, 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 12 GILPIN GREEN). 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 12 GILPIN GREEN?

12 GILPIN GREEN is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 12 on GILPIN GREEN.