The information on this page is based on a number of underlying datasets, most of which are updated monthly. We maintain an update schedule which explains which version of each dataset we are currently relying on.
9 WILLIAM TRIGG CLOSE is a large detached house of 111m², built sometime between 1996 and 2002, which could now be worth an estimated £285,834. It was last sold for £174,000 in May 2015, which was around 30% below the average May 2015 detached price in the North Northamptonshire local authority area. The most recent EPC inspection was December 2009, where the current energy rating was D, and the potential energy rating was C.
Land registry data shows two sales for 9 WILLIAM TRIGG CLOSE since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the North Northamptonshire local authority area for the corresponding sale date. Both of the two 9 WILLIAM TRIGG CLOSE 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 |
---|---|---|---|
2015 22 MAY | £174,000 | £248,216 | ![]() 30% below HPI |
2011 28 NOV | £154,000 | £212,447 | ![]() 28% below HPI |
The below graph shows the average detached house price in the North Northamptonshire local authority area over time, sourced from the HPI. The two 9 WILLIAM TRIGG CLOSE sales from November 2011 and May 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 November 2011 sale was for 28% below the HPI. So the extrapolation line tracks at 28% below the HPI over time, until the May 2015 sale, where it falls to 30% below the HPI. The line then continues to track at 30% below the HPI.
9 WILLIAM TRIGG CLOSE might now be worth an estimated £285,834.
This is based on house price inflation of 64.3%, between May 2015 and February 2025, for detached houses, in the North Northamptonshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 64.3% inflationary increase is applied to the most recent sale price for 9 WILLIAM TRIGG CLOSE of £174,000 on 22nd May 2015. For the value to have increased from £174,000 to £285,834 over the ten years and three months to February 2025, the following assumptions must hold true:
9 WILLIAM TRIGG CLOSE is 111m² according to the EPC inspection conducted in December 2009. This puts it in the largest 40% of detached houses houses in Irthlingborough, based on EPC data. The below chart shows the distribution of detached houses houses by size in Irthlingborough, and where 9 WILLIAM TRIGG CLOSE lies on this distribution: 61% of detached houses houses are smaller than 9 WILLIAM TRIGG CLOSE, and 39% of houses are larger. Note that EPC data is not available for all properties in Irthlingborough.
9 WILLIAM TRIGG CLOSE sits on a plot of roughly 0.114 of an acre, or 463m². The below map shows the location of 9 WILLIAM TRIGG CLOSE, 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 9 WILLIAM TRIGG CLOSE). 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.
9 WILLIAM TRIGG CLOSE is located in IRTHLINGBOROUGH, in the NN9 postcode district. The below map shows the position of No. 9 on WILLIAM TRIGG CLOSE.
Most recent sales first: