21, GROSVENOR ROAD, BARTON SEAGRAVE, KETTERING, NN15 6TF - £173,000

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.

21 GROSVENOR ROAD is a very small semi-detached house of 54m², built sometime between 1950 and 1966, which could now be worth an estimated £256,447. It was last sold for £173,000 in January 2017, which was about the average January 2017 semi-detached price in the North Northamptonshire local authority area. The most recent EPC inspection was January 2023, where the current energy rating was B, and the potential energy rating was A.

21 GROSVENOR ROAD Sold Prices

Land registry data shows two sales for 21 GROSVENOR ROAD 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 21 GROSVENOR ROAD sales was roughly equal to 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
2017 16 JAN	£173,000	£173,440	Close to HPI
1998 3 APR	£53,500	£44,315	21% above HPI

21 GROSVENOR ROAD 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 21 GROSVENOR ROAD sales from April 1998 and January 2017 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 April 1998 sale was for 21% above the HPI. So the extrapolation line tracks at 21% above the HPI over time, until the January 2017 sale, where it falls to roughly the same level as the HPI. The line then continues to track in line with the HPI.

What might 21 GROSVENOR ROAD be worth now?

21 GROSVENOR ROAD might now be worth an estimated £256,447.

This is based on house price inflation of 48.2%, between January 2017 and August 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 48.2% inflationary increase is applied to the most recent sale price for 21 GROSVENOR ROAD of £173,000 on 16th January 2017. For the value to have increased from £173,000 to £256,447 over the seven years and five months to August 2025, the following assumptions must hold true:

• The value of 21 GROSVENOR ROAD has moved in line with the HPI for semi-detached houses in the North Northamptonshire local authority area.
• The January 2017 sale price of £173,000 represented a fair market value for the property.
• The size, condition, and specification of 21 GROSVENOR ROAD has not materially changed since January 2017.

How Large is 21 GROSVENOR ROAD?

21 GROSVENOR ROAD is 54m² according to the EPC inspection conducted in January 2023. This puts it in the smallest 10% of semi-detached houses houses in Kettering, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Kettering, and where 21 GROSVENOR ROAD lies on this distribution: 1% of semi-detached houses houses are smaller than 21 GROSVENOR ROAD, and 99% of houses are larger. Note that EPC data is not available for all properties in Kettering.

21 GROSVENOR ROAD: Plot and Title Map

21 GROSVENOR ROAD sits on a plot of roughly 0.114 of an acre, or 463m². The below map shows the location of 21 GROSVENOR ROAD, 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 GROSVENOR ROAD). 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 GROSVENOR ROAD?

21 GROSVENOR ROAD is located in BARTON SEAGRAVE, in the NN15 postcode district. The below map shows the position of No. 21 on GROSVENOR ROAD.