20, NEW ROAD, MARLOW, SL7 3NG - £422,500

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 NEW ROAD is a small detached house of 116m², built sometime between 1983 and 1990, which could now be worth an estimated £734,465. It was last sold for £422,500 in July 2007, which was around 15% below the average July 2007 detached price in the Buckinghamshire local authority area. The most recent EPC inspection was July 2026, where the current energy rating was D, and the potential energy rating was B.

20 NEW ROAD Sold Prices

Land registry data shows two sales for 20 NEW ROAD since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Buckinghamshire local authority area for the corresponding sale date. Both of the two 20 NEW ROAD 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
2007 20 JUL	£422,500	£498,050	15% below HPI
1995 15 NOV	£150,000	£155,749	4% below HPI

20 NEW ROAD Price Paid vs. HPI Average

The below graph shows the average detached house price in the Buckinghamshire local authority area over time, sourced from the HPI. The two 20 NEW ROAD sales from November 1995 and July 2007 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 November 1995 sale was for 4% below the HPI. So the extrapolation line tracks at 4% below the HPI over time, until the July 2007 sale, where it falls to 15% below the HPI. The line then continues to track at 15% below the HPI.

What might 20 NEW ROAD be worth now?

20 NEW ROAD might now be worth an estimated £734,465.

This is based on house price inflation of 73.8%, between July 2007 and May 2026, for detached houses, in the Buckinghamshire local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 73.8% inflationary increase is applied to the most recent sale price for 20 NEW ROAD of £422,500 on 20th July 2007. For the value to have increased from £422,500 to £734,465 over the nineteen years and two months to May 2026, the following assumptions must hold true:

• The value of 20 NEW ROAD has moved in line with the HPI for detached houses in the Buckinghamshire local authority area.
• The July 2007 sale price of £422,500 represented a fair market value for the property.
• The size, condition, and specification of 20 NEW ROAD has not materially changed since July 2007.

How Large is 20 NEW ROAD?

20 NEW ROAD is 116m² according to the EPC inspection conducted in July 2026. This puts it in the smallest 30% of detached houses houses in Marlow Bottom, based on EPC data. The below chart shows the distribution of detached houses houses by size in Marlow Bottom, and where 20 NEW ROAD lies on this distribution: 26% of detached houses houses are smaller than 20 NEW ROAD, and 72% of houses are larger. Note that EPC data is not available for all properties in Marlow Bottom.

Where is 20 NEW ROAD?

20 NEW ROAD is located in MARLOW, in the SL7 postcode district. The below map shows the position of No. 20 on NEW ROAD.