28, MIDDLE GRASS, IRTHLINGBOROUGH, WELLINGBOROUGH, NN9 5TW - £117,500

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.

28 MIDDLE GRASS is a small extended semi-detached house of 87m², built sometime between 1996 and 2002, which could now be worth an estimated £241,795. It was last sold for £117,500 in February 2006, which was around 4% below the average February 2006 semi-detached price in the North Northamptonshire local authority area. The most recent EPC inspection was April 2026, where the current energy rating was C, and the potential energy rating was C.

28 MIDDLE GRASS Sold Prices

Land registry data shows two sales for 28 MIDDLE GRASS 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. One of the two 28 MIDDLE GRASS sales was for below the average price, whilst the other was 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
2006 28 FEB	£117,500	£122,996	4% below HPI
1998 26 JUN	£56,220	£46,105	22% above HPI

28 MIDDLE GRASS 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 28 MIDDLE GRASS sales from June 1998 and February 2006 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 June 1998 sale was for 22% above the HPI. So the extrapolation line tracks at 22% above the HPI over time, until the February 2006 sale, where it falls to 4% below the HPI. The line then continues to track at 4% below the HPI.

What might 28 MIDDLE GRASS be worth now?

28 MIDDLE GRASS might now be worth an estimated £241,795.

This is based on house price inflation of 105.8%, between February 2006 and May 2026, 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 105.8% inflationary increase is applied to the most recent sale price for 28 MIDDLE GRASS of £117,500 on 28th February 2006. For the value to have increased from £117,500 to £241,795 over the nineteen years and nine months to May 2026, the following assumptions must hold true:

• The value of 28 MIDDLE GRASS has moved in line with the HPI for semi-detached houses in the North Northamptonshire local authority area.
• The February 2006 sale price of £117,500 represented a fair market value for the property.
• The size, condition, and specification of 28 MIDDLE GRASS has not materially changed since February 2006.

How Large is 28 MIDDLE GRASS?

28 MIDDLE GRASS is 87m², which includes one extension, according to the EPC inspection conducted in April 2026. This puts it in the smallest 30% of semi-detached houses houses in Irthlingborough, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Irthlingborough, and where 28 MIDDLE GRASS lies on this distribution: 24% of semi-detached houses houses are smaller than 28 MIDDLE GRASS, and 74% of houses are larger. Note that EPC data is not available for all properties in Irthlingborough.

28 MIDDLE GRASS: Plot and Title Map

28 MIDDLE GRASS sits on a plot of roughly 0.059 of an acre, or 240m². The below map shows the location of 28 MIDDLE GRASS, 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 28 MIDDLE GRASS). 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 28 MIDDLE GRASS?

28 MIDDLE GRASS is located in IRTHLINGBOROUGH, in the NN9 postcode district. The below map shows the position of No. 28 on MIDDLE GRASS.