21, PURLEY KNOLL, PURLEY, CR8 3AF - £665,000

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 PURLEY KNOLL is a large detached house of 224m², built sometime between 1900 and 1929, which could now be worth an estimated £1,183,197. It was last sold for £665,000 in January 2013, which was around 38% above the average January 2013 detached price in the Croydon local authority area. The most recent EPC inspection was October 2012, where the current energy rating was F, and the potential energy rating was D.

21 PURLEY KNOLL Sold Prices

Land registry data shows three sales for 21 PURLEY KNOLL since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Croydon local authority area for the corresponding sale date. All of the three 21 PURLEY KNOLL sales were 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
2013 25 JAN	£665,000	£483,491	38% above HPI
1997 9 JAN	£210,250	£161,511	30% above HPI
1996 1 AUG	£194,000	£157,524	23% above HPI

21 PURLEY KNOLL Price Paid vs. HPI Average

The below graph shows the average detached house price in the Croydon local authority area over time, sourced from the HPI. The three 21 PURLEY KNOLL sales between August 1996 and January 2013 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 1997 sale was for 30% above the HPI. So the extrapolation line tracks at 30% above the HPI over time, until the January 2013 sale, where it rises to 38% above the HPI. The line then continues to track at 38% above the HPI.

What might 21 PURLEY KNOLL be worth now?

21 PURLEY KNOLL might now be worth an estimated £1,183,197.

This is based on house price inflation of 77.9%, between January 2013 and February 2025, for detached houses, in the Croydon local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 77.9% inflationary increase is applied to the most recent sale price for 21 PURLEY KNOLL of £665,000 on 25th January 2013. For the value to have increased from £665,000 to £1,183,197 over the eleven years and eleven months to February 2025, the following assumptions must hold true:

• The value of 21 PURLEY KNOLL has moved in line with the HPI for detached houses in the Croydon local authority area.
• The January 2013 sale price of £665,000 represented a fair market value for the property.
• The size, condition, and specification of 21 PURLEY KNOLL has not materially changed since January 2013.

How Large is 21 PURLEY KNOLL?

21 PURLEY KNOLL is 224m² according to the EPC inspection conducted in October 2012. This puts it in the largest 30% of detached houses houses in Purley, based on EPC data. The below chart shows the distribution of detached houses houses by size in Purley, and where 21 PURLEY KNOLL lies on this distribution: 73% of detached houses houses are smaller than 21 PURLEY KNOLL, and 27% of houses are larger. Note that EPC data is not available for all properties in Purley.

21 PURLEY KNOLL: Plot and Title Map

21 PURLEY KNOLL sits on a plot of roughly 0.181 of an acre, or 733m². The below map shows the location of 21 PURLEY KNOLL, 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 PURLEY KNOLL). 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 PURLEY KNOLL?

21 PURLEY KNOLL is located in PURLEY, in the CR8 postcode district. The below map shows the position of No. 21 on PURLEY KNOLL.