20, DEEPDENE AVENUE, DORKING, RH4 1SR - £945,000

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.

20 DEEPDENE AVENUE is a large extended detached house of 178m², built sometime between 1930 and 1949, which could now be worth an estimated £897,151. It was last sold for £945,000 in November 2025, which was around 7% below the average November 2025 detached price in the Mole Valley local authority area. The most recent EPC inspection was April 2025, where the current energy rating was D, and the potential energy rating was C.

20 DEEPDENE AVENUE Sold Prices

Land registry data shows two sales for 20 DEEPDENE AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Mole Valley local authority area for the corresponding sale date. Both of the two 20 DEEPDENE AVENUE 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 4 NOV	£945,000	£1,014,340	7% below HPI
2000 19 SEP	£333,000	£356,493	7% below HPI

20 DEEPDENE AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Mole Valley local authority area over time, sourced from the HPI. The two 20 DEEPDENE AVENUE sales from September 2000 and November 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 September 2000 sale was for 7% below the HPI. So the extrapolation line tracks at 7% below the HPI over time, until the November 2025 sale, which was also at 7% below the HPI.

What might 20 DEEPDENE AVENUE be worth now?

20 DEEPDENE AVENUE might now be worth an estimated £897,151.

This is based on house price deflation of 5.1%, between November 2025 and May 2026, for detached houses, in the Mole Valley local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 5.1% deflationary decrease is applied to the most recent sale price for 20 DEEPDENE AVENUE of £945,000 on 4th November 2025. For the value to have decreased from £945,000 to £897,151 over the one year and six months to May 2026, the following assumptions must hold true:

• The value of 20 DEEPDENE AVENUE has moved in line with the HPI for detached houses in the Mole Valley local authority area.
• The November 2025 sale price of £945,000 represented a fair market value for the property.
• The size, condition, and specification of 20 DEEPDENE AVENUE has not materially changed since November 2025.

How Large is 20 DEEPDENE AVENUE?

20 DEEPDENE AVENUE is 178m², which includes one extension, according to the EPC inspection conducted in April 2025. This puts it in the largest 30% of detached houses houses in Dorking, based on EPC data. The below chart shows the distribution of detached houses houses by size in Dorking, and where 20 DEEPDENE AVENUE lies on this distribution: 70% of detached houses houses are smaller than 20 DEEPDENE AVENUE, and 29% of houses are larger. Note that EPC data is not available for all properties in Dorking.

20 DEEPDENE AVENUE: Plot and Title Map

20 DEEPDENE AVENUE sits on a plot of roughly 0.169 of an acre, or 685m². The below map shows the location of 20 DEEPDENE AVENUE, 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 20 DEEPDENE AVENUE). 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 20 DEEPDENE AVENUE?

20 DEEPDENE AVENUE is located in DORKING, in the RH4 postcode district. The below map shows the position of No. 20 on DEEPDENE AVENUE.