12A, THORNDOWN LANE, WINDLESHAM, GU20 6DD - £425,000

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

12A THORNDOWN LANE is a very small extended semi-detached house of 91m², built sometime between 1950 and 1966, which could now be worth an estimated £537,387. It was last sold for £425,000 in December 2015, which was around 20% above the average December 2015 semi-detached price in the Surrey Heath local authority area. The most recent EPC inspection was January 2025, where the current energy rating was D, and the potential energy rating was B.

12A THORNDOWN LANE Sold Prices

Land registry data shows two sales for 12A THORNDOWN LANE 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 Surrey Heath local authority area for the corresponding sale date. One of the two 12A THORNDOWN LANE sales was for above 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
2015 14 DEC	£425,000	£353,971	20% above HPI
2012 9 JAN	£235,000	£253,127	7% below HPI

12A THORNDOWN LANE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Surrey Heath local authority area over time, sourced from the HPI. The two 12A THORNDOWN LANE sales from January 2012 and December 2015 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 2012 sale was for 7% below the HPI. So the extrapolation line tracks at 7% below the HPI over time, until the December 2015 sale, where it rises to 20% above the HPI. The line then continues to track at 20% above the HPI.

What might 12A THORNDOWN LANE be worth now?

12A THORNDOWN LANE might now be worth an estimated £537,387.

This is based on house price inflation of 26.4%, between December 2015 and February 2025, for semi-detached houses, in the Surrey Heath local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 26.4% inflationary increase is applied to the most recent sale price for 12A THORNDOWN LANE of £425,000 on 14th December 2015. For the value to have increased from £425,000 to £537,387 over the ten years and ten months to February 2025, the following assumptions must hold true:

• The value of 12A THORNDOWN LANE has moved in line with the HPI for semi-detached houses in the Surrey Heath local authority area.
• The December 2015 sale price of £425,000 represented a fair market value for the property.
• The size, condition, and specification of 12A THORNDOWN LANE has not materially changed since December 2015.

How Large is 12A THORNDOWN LANE?

12A THORNDOWN LANE is 91m², which includes one extension, according to the EPC inspection conducted in January 2025. This puts it in the smallest 10% of semi-detached houses houses in Windlesham, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Windlesham, and where 12A THORNDOWN LANE lies on this distribution: 7% of semi-detached houses houses are smaller than 12A THORNDOWN LANE, and 92% of houses are larger. Note that EPC data is not available for all properties in Windlesham.

12A THORNDOWN LANE: Plot and Title Map

12A THORNDOWN LANE sits on a plot of roughly 0.091 of an acre, or 368m². The below map shows the location of 12A THORNDOWN 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 12A THORNDOWN 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 12A THORNDOWN LANE?

12A THORNDOWN LANE is located in WINDLESHAM, in the GU20 postcode district. The below map shows the position of No. 12A on THORNDOWN LANE.