4, KEYSTONE, NORTHAMPTON, NN4 9QZ - £375,000

Based on the September 2024 Price Paid Data (released on 28th October 2024), the August 2024 House Price Index (released on 16th October 2024), and the September 2024 Energy Performance of Buildings Data (released on 31st October 2024). Sources

4 KEYSTONE is a very large extended detached house of 160m², built sometime between 1996 and 2002. It was last sold for £375,000 in March 2016, which was around 10% above the average March 2016 detached price in the West Northamptonshire local authority area. The most recent EPC inspection was April 2014, where the current energy rating was C, and the potential energy rating was B.

4 KEYSTONE Sold Prices

Land registry data shows three sales for 4 KEYSTONE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the West Northamptonshire local authority area for the corresponding sale date. All of the three 4 KEYSTONE 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
2016 31 MAR	£375,000	£342,208	10% above HPI
2014 15 AUG	£333,000	£304,356	9% above HPI
1999 27 AUG	£182,995	£125,024	46% above HPI

4 KEYSTONE Price Paid vs. HPI Average

The below graph shows the average detached house price in the West Northamptonshire local authority area over time, sourced from the HPI. The three 4 KEYSTONE sales between August 1999 and March 2016 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 2014 sale was for 9% above the HPI. So the extrapolation line tracks at 9% above the HPI over time, until the March 2016 sale, where it rises to 10% above the HPI. The line then continues to track at 10% above the HPI.

How Large is 4 KEYSTONE?

4 KEYSTONE is 160m², which includes three extensions, according to the EPC inspection conducted in April 2014. This puts it in the largest 20% of detached houses in Northampton, based on EPC data. The below chart shows the distribution of detached houses by size in Northampton, and where 4 KEYSTONE lies on this distribution: 85% of detached houses are smaller than 4 KEYSTONE, and 15% of houses are larger. Note that EPC data is not available for all properties in Northampton.

4 KEYSTONE: Plot and Title Map

4 KEYSTONE sits on a plot of roughly 0.090 of an acre, or 363m². The below map shows the location of 4 KEYSTONE, 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 4 KEYSTONE). 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 4 KEYSTONE?

4 KEYSTONE is located in NORTHAMPTON, in the NN4 postcode district. The below map shows the position of No. 4 on KEYSTONE.