24, BLACKMILE LANE, GRENDON, NORTHAMPTON, NN7 1JR - £389,995

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

24 BLACKMILE LANE is a very small extended semi-detached house of 78m², built sometime before 1900, which could now be worth an estimated £402,001. It was last sold for £389,995 in July 2022, which was around 60% above the average July 2022 semi-detached price in the North Northamptonshire local authority area. The most recent EPC inspection was December 2021, where the current energy rating was G, and the potential energy rating was B.

24 BLACKMILE LANE Sold Prices

Land registry data shows two sales for 24 BLACKMILE LANE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the North Northamptonshire local authority area for the corresponding sale date. Both of the two 24 BLACKMILE LANE 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
2022 11 JUL	£389,995	£243,944	60% above HPI
2015 24 JUL	£270,000	£151,056	79% above HPI

24 BLACKMILE LANE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the North Northamptonshire local authority area over time, sourced from the HPI. The two 24 BLACKMILE LANE sales from July 2015 and July 2022 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 July 2015 sale was for 79% above the HPI. So the extrapolation line tracks at 79% above the HPI over time, until the July 2022 sale, where it falls to 60% above the HPI. The line then continues to track at 60% above the HPI.

What might 24 BLACKMILE LANE be worth now?

24 BLACKMILE LANE might now be worth an estimated £402,001.

This is based on house price inflation of 3.1%, between July 2022 and February 2025, for semi-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 3.1% inflationary increase is applied to the most recent sale price for 24 BLACKMILE LANE of £389,995 on 11th July 2022. For the value to have increased from £389,995 to £402,001 over the three years and five months to February 2025, the following assumptions must hold true:

• The value of 24 BLACKMILE LANE has moved in line with the HPI for semi-detached houses in the North Northamptonshire local authority area.
• The July 2022 sale price of £389,995 represented a fair market value for the property.
• The size, condition, and specification of 24 BLACKMILE LANE has not materially changed since July 2022.

How Large is 24 BLACKMILE LANE?

24 BLACKMILE LANE is 78m², which includes three extensions, according to the EPC inspection conducted in December 2021. This puts it in the smallest 10% of semi-detached houses houses in Grendon, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Grendon, and where 24 BLACKMILE LANE lies on this distribution: 4% of semi-detached houses houses are smaller than 24 BLACKMILE LANE, and 96% of houses are larger. Note that EPC data is not available for all properties in Grendon.

24 BLACKMILE LANE: Plot and Title Map

24 BLACKMILE LANE sits on a plot of roughly 0.090 of an acre, or 366m². The below map shows the location of 24 BLACKMILE LANE, 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 24 BLACKMILE LANE). 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 24 BLACKMILE LANE?

24 BLACKMILE LANE is located in GRENDON, in the NN7 postcode district. The below map shows the position of No. 24 on BLACKMILE LANE.