THIRLMERE, GORSE WAY, HARTLEY, LONGFIELD, DA3 8AA - £260,000

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

THIRLMERE is a very small semi-detached house of 68m², built sometime between 1967 and 1975, which could now be worth an estimated £513,200. It was last sold for £260,000 in September 2009, which was about the average September 2009 semi-detached price in the Sevenoaks local authority area. The most recent EPC inspection was February 2009, where the current energy rating was D, and the potential energy rating was C.

THIRLMERE Sold Prices

Land registry data shows two sales for THIRLMERE 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 Sevenoaks local authority area for the corresponding sale date. One of the two THIRLMERE sales was roughly equal to the average price, whilst the other was 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
2009 4 SEP	£260,000	£261,020	Close to HPI
1999 16 AUG	£117,000	£121,244	4% below HPI

THIRLMERE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Sevenoaks local authority area over time, sourced from the HPI. The two THIRLMERE sales from August 1999 and September 2009 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 August 1999 sale was for 4% below the HPI. So the extrapolation line tracks at 4% below the HPI over time, until the September 2009 sale, where it rises to roughly the same level as the HPI. The line then continues to track in line with the HPI.

What might THIRLMERE be worth now?

THIRLMERE might now be worth an estimated £513,200.

This is based on house price inflation of 97.4%, between September 2009 and December 2024, for semi-detached houses, in the Sevenoaks local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 97.4% inflationary increase is applied to the most recent sale price for THIRLMERE of £260,000 on 4th September 2009. For the value to have increased from £260,000 to £513,200 over the fourteen years and nine months to December 2024, the following assumptions must hold true:

• The value of THIRLMERE has moved in line with the HPI for semi-detached houses in the Sevenoaks local authority area.
• The September 2009 sale price of £260,000 represented a fair market value for the property.
• The size, condition, and specification of THIRLMERE has not materially changed since September 2009.

How Large is THIRLMERE?

THIRLMERE is 68m² according to the EPC inspection conducted in February 2009. This puts it in the smallest 10% of semi-detached houses houses in Hartley, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Hartley, and where THIRLMERE lies on this distribution: 2% of semi-detached houses houses are smaller than THIRLMERE, and 98% of houses are larger. Note that EPC data is not available for all properties in Hartley.

THIRLMERE: Plot and Title Map

THIRLMERE sits on a plot of roughly 0.099 of an acre, or 402m². The below map shows the location of THIRLMERE, 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 THIRLMERE). 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 THIRLMERE?

THIRLMERE is located on GORSE WAY in HARTLEY, in the DA3 postcode district. The below map shows the position of THIRLMERE on GORSE WAY.