18, LOCK ROAD, MARLOW, SL7 1QW - £1,720,000

Based on the December 2024 Price Paid Data (released on 29th January 2025), the November 2024 House Price Index (released on 15th January 2025), and the December 2024 Energy Performance of Buildings Data (released on 31st January 2025). Sources

18 LOCK ROAD is a very large extended detached house of 251m², built sometime between 1900 and 1929. It was last sold for £1,720,000 in January 2017, which was around 146% above the average January 2017 detached price in the Buckinghamshire local authority area. The most recent EPC inspection was September 2016, where the current energy rating was E, and the potential energy rating was C.

18 LOCK ROAD Sold Prices

Land registry data shows three sales for 18 LOCK ROAD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Buckinghamshire local authority area for the corresponding sale date. All of the three 18 LOCK ROAD 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
2017 24 JAN	£1,720,000	£698,127	146% above HPI
2007 12 DEC	£1,250,000	£500,090	150% above HPI
1995 8 DEC	£310,000	£150,764	106% above HPI

18 LOCK 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 three 18 LOCK ROAD sales between December 1995 and January 2017 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 December 2007 sale was for 150% above the HPI. So the extrapolation line tracks at 150% above the HPI over time, until the January 2017 sale, where it falls to 146% above the HPI. The line then continues to track at 146% above the HPI.

How Large is 18 LOCK ROAD?

18 LOCK ROAD is 251m², which includes two extensions, according to the EPC inspection conducted in September 2016. This puts it in the largest 10% of detached houses in Marlow, based on EPC data. The below chart shows the distribution of detached houses by size in Marlow, and where 18 LOCK ROAD lies on this distribution: 90% of detached houses are smaller than 18 LOCK ROAD, and 10% of houses are larger. Note that EPC data is not available for all properties in Marlow.

18 LOCK ROAD: Plot and Title Map

18 LOCK ROAD sits on a plot of roughly 0.236 of an acre, or 953m². The below map shows the location of 18 LOCK ROAD, 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 18 LOCK ROAD). 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 18 LOCK ROAD?

18 LOCK ROAD is located in MARLOW, in the SL7 postcode district. The below map shows the position of No. 18 on LOCK ROAD.