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.
9 PARK MOUNT is a very small extended terraced house of 100m², built sometime between 1900 and 1929, which could now be worth an estimated £743,342. It was last sold for £635,000 in September 2017, which was around 31% above the average September 2017 terraced price in the St Albans local authority area. The most recent EPC inspection was January 2011, where the current energy rating was E, and the potential energy rating was D.
Land registry data shows four sales for 9 PARK MOUNT since 1st January 1995. The below table shows the price paid for the four sales, along with the average terraced price in the St Albans local authority area for the corresponding sale date. All of the four 9 PARK MOUNT 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 22 SEP | £635,000 | £486,113 | 31% above HPI |
2011 24 AUG | £450,000 | £312,661 | 44% above HPI |
2005 18 DEC | £337,500 | £250,000 | 35% above HPI |
2002 8 MAR | £195,000 | £177,424 | 10% above HPI |
The below graph shows the average terraced house price in the St Albans local authority area over time, sourced from the HPI. The four 9 PARK MOUNT sales between March 2002 and September 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 August 2011 sale was for 44% above the HPI. So the extrapolation line tracks at 44% above the HPI over time, until the September 2017 sale, where it falls to 31% above the HPI. The line then continues to track at 31% above the HPI.

9 PARK MOUNT might now be worth an estimated £743,342.
This is based on house price inflation of 17.1%, between September 2017 and May 2026, for terraced houses, in the St Albans local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 17.1% inflationary increase is applied to the most recent sale price for 9 PARK MOUNT of £635,000 on 22nd September 2017. For the value to have increased from £635,000 to £743,342 over the nine years and four months to May 2026, the following assumptions must hold true:
9 PARK MOUNT is 100m², which includes two extensions, according to the EPC inspection conducted in January 2011. This puts it in the smallest 10% of terraced houses houses in Harpenden, based on EPC data. The below chart shows the distribution of terraced houses houses by size in Harpenden, and where 9 PARK MOUNT lies on this distribution: 7% of terraced houses houses are smaller than 9 PARK MOUNT, and 92% of houses are larger. Note that EPC data is not available for all properties in Harpenden.

9 PARK MOUNT sits on a plot of roughly 0.036 of an acre, or 145m². The below map shows the location of 9 PARK MOUNT, 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 9 PARK MOUNT). 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.

9 PARK MOUNT is located in HARPENDEN, in the AL5 postcode district. The below map shows the position of No. 9 on PARK MOUNT.

Most recent sales first: