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 SCHOOL ROAD is a very small extended semi-detached house of 130m², built sometime between 1950 and 1966, which could now be worth an estimated £1,010,982. It was last sold for £564,200 in March 2012, which was around 111% above the average March 2012 semi-detached price in the Buckinghamshire local authority area. The most recent EPC inspection was October 2011, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows three sales for 20 SCHOOL ROAD since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Buckinghamshire local authority area for the corresponding sale date. All of the three 20 SCHOOL 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 |
|---|---|---|---|
2012 13 MAR | £564,200 | £267,412 | 111% above HPI |
2006 26 MAY | £360,000 | £239,214 | 50% above HPI |
1997 4 DEC | £195,000 | £103,791 | 88% above HPI |
The below graph shows the average semi-detached house price in the Buckinghamshire local authority area over time, sourced from the HPI. The three 20 SCHOOL ROAD sales between December 1997 and March 2012 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 May 2006 sale was for 50% above the HPI. So the extrapolation line tracks at 50% above the HPI over time, until the March 2012 sale, where it rises to 111% above the HPI. The line then continues to track at 111% above the HPI.

20 SCHOOL ROAD might now be worth an estimated £1,010,982.
This is based on house price inflation of 79.2%, between March 2012 and May 2026, for semi-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 79.2% inflationary increase is applied to the most recent sale price for 20 SCHOOL ROAD of £564,200 on 13th March 2012. For the value to have increased from £564,200 to £1,010,982 over the thirteen years and ten months to May 2026, the following assumptions must hold true:
20 SCHOOL ROAD is 130m², which includes two extensions, according to the EPC inspection conducted in October 2011. This puts it in the smallest 20% of semi-detached houses houses in Penn, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Penn, and where 20 SCHOOL ROAD lies on this distribution: 15% of semi-detached houses houses are smaller than 20 SCHOOL ROAD, and 84% of houses are larger. Note that EPC data is not available for all properties in Penn.

20 SCHOOL ROAD sits on a plot of roughly 0.103 of an acre, or 415m². The below map shows the location of 20 SCHOOL 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 20 SCHOOL 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.

20 SCHOOL ROAD is located in PENN, in the HP10 postcode district. The below map shows the position of No. 20 on SCHOOL ROAD.

Most recent sales first: