21, GLASSTHORPE LANE, HARPOLE, NORTHAMPTON, NN7 4DX - £410,000

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

21 GLASSTHORPE LANE is a midsized semi-detached house of 146m². It was last sold for £410,000 in October 2019, which was around 80% above the average October 2019 semi-detached price in the West Northamptonshire local authority area. The most recent EPC inspection was November 2015, where the current energy rating was B, and the potential energy rating was B.

21 GLASSTHORPE LANE Sold Prices

Land registry data shows three sales for 21 GLASSTHORPE LANE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the West Northamptonshire local authority area for the corresponding sale date. All of the three 21 GLASSTHORPE 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
2019 9 OCT	£410,000	£227,902	80% above HPI
2017 27 JAN	£385,000	£214,177	80% above HPI
2015 14 DEC	£331,000	£195,816	69% above HPI

21 GLASSTHORPE LANE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the West Northamptonshire local authority area over time, sourced from the HPI. The three 21 GLASSTHORPE LANE sales between December 2015 and October 2019 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 January 2017 sale was for 80% above the HPI. So the extrapolation line tracks at 80% above the HPI over time, until the October 2019 sale, which was also at 80% above the HPI.

What might 21 GLASSTHORPE LANE be worth now?

21 GLASSTHORPE LANE might now be worth an estimated £509,468.

This is based on house price inflation of 24.3%, between October 2019 and December 2024, for semi-detached houses, in the West Northamptonshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 24.3% inflationary increase is applied to the most recent sale price for 21 GLASSTHORPE LANE of £410,000 on 9th October 2019. For the value to have increased from £410,000 to £509,468 over the four years and ten months to December 2024, the following assumptions must hold true:

• The value of 21 GLASSTHORPE LANE has moved in line with the HPI for semi-detached houses in the West Northamptonshire local authority area.
• The October 2019 sale price of £410,000 represented a fair market value for the property.
• The size, condition, and specification of 21 GLASSTHORPE LANE has not materially changed since October 2019.

How Large is 21 GLASSTHORPE LANE?

21 GLASSTHORPE LANE is 146m² according to the EPC inspection conducted in November 2015. This puts it in the largest 50% of semi-detached houses houses in Harpole, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Harpole, and where 21 GLASSTHORPE LANE lies on this distribution: 55% of semi-detached houses houses are smaller than 21 GLASSTHORPE LANE, and 45% of houses are larger. Note that EPC data is not available for all properties in Harpole.

21 GLASSTHORPE LANE: Plot and Title Map

21 GLASSTHORPE LANE sits on a plot of roughly 0.101 of an acre, or 407m². The below map shows the location of 21 GLASSTHORPE 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 21 GLASSTHORPE 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 21 GLASSTHORPE LANE?

21 GLASSTHORPE LANE is located in HARPOLE, in the NN7 postcode district. The below map shows the position of No. 21 on GLASSTHORPE LANE.