4, BLACKBIRD CLOSE, THRAPSTON, KETTERING, NN14 4SD - £380,000

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.

4 BLACKBIRD CLOSE is a small detached house of 107m², built in 2018, which could now be worth an estimated £376,180. It was last sold for £380,000 in October 2025, which was around 8% below the average October 2025 detached price in the North Northamptonshire local authority area. The most recent EPC inspection was March 2020, where the current energy rating was B, and the potential energy rating was A.

4 BLACKBIRD CLOSE Sold Prices

Land registry data shows two sales for 4 BLACKBIRD CLOSE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the North Northamptonshire local authority area for the corresponding sale date. Both of the two 4 BLACKBIRD CLOSE sales were for below 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
2025 23 OCT	£380,000	£411,617	8% below HPI
2020 26 MAR	£309,495	£337,797	8% below HPI

4 BLACKBIRD CLOSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the North Northamptonshire local authority area over time, sourced from the HPI. The two 4 BLACKBIRD CLOSE sales from March 2020 and October 2025 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 March 2020 sale was for 8% below the HPI. So the extrapolation line tracks at 8% below the HPI over time, until the October 2025 sale, which was also at 8% below the HPI.

What might 4 BLACKBIRD CLOSE be worth now?

4 BLACKBIRD CLOSE might now be worth an estimated £376,180.

This is based on house price deflation of 1%, between October 2025 and April 2026, for 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 1% deflationary decrease is applied to the most recent sale price for 4 BLACKBIRD CLOSE of £380,000 on 23rd October 2025. For the value to have decreased from £380,000 to £376,180 over the one year and six months to April 2026, the following assumptions must hold true:

• The value of 4 BLACKBIRD CLOSE has moved in line with the HPI for detached houses in the North Northamptonshire local authority area.
• The October 2025 sale price of £380,000 represented a fair market value for the property.
• The size, condition, and specification of 4 BLACKBIRD CLOSE has not materially changed since October 2025.

How Large is 4 BLACKBIRD CLOSE?

4 BLACKBIRD CLOSE is 107m² according to the EPC inspection conducted in March 2020. This puts it in the smallest 40% of detached houses houses in Thrapston, based on EPC data. The below chart shows the distribution of detached houses houses by size in Thrapston, and where 4 BLACKBIRD CLOSE lies on this distribution: 31% of detached houses houses are smaller than 4 BLACKBIRD CLOSE, and 67% of houses are larger. Note that EPC data is not available for all properties in Thrapston.

4 BLACKBIRD CLOSE: Plot and Title Map

4 BLACKBIRD CLOSE sits on a plot of roughly 0.087 of an acre, or 354m². The below map shows the location of 4 BLACKBIRD CLOSE, 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 BLACKBIRD CLOSE). 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 BLACKBIRD CLOSE?

4 BLACKBIRD CLOSE is located in THRAPSTON, in the NN14 postcode district. The below map shows the position of No. 4 on BLACKBIRD CLOSE.