9, CLAMP HILL, STANMORE, HA7 3JS - £975,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

9 CLAMP HILL is a large extended detached house of 193m², built sometime between 1930 and 1949, which could now be worth an estimated £1,124,915. It was last sold for £975,000 in August 2020, which was around 6% below the average August 2020 detached price in the Harrow local authority area. The most recent EPC inspection was June 2019, where the current energy rating was D, and the potential energy rating was C.

9 CLAMP HILL Sold Prices

Land registry data shows two sales for 9 CLAMP HILL since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Harrow local authority area for the corresponding sale date. Both of the two 9 CLAMP HILL 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
2020 12 AUG	£975,000	£1,042,540	6% below HPI
2012 21 NOV	£710,000	£717,181	1% below HPI

9 CLAMP HILL Price Paid vs. HPI Average

The below graph shows the average detached house price in the Harrow local authority area over time, sourced from the HPI. The two 9 CLAMP HILL sales from November 2012 and August 2020 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 2012 sale was for 1% below the HPI. So the extrapolation line tracks at 1% below the HPI over time, until the August 2020 sale, where it falls to 6% below the HPI. The line then continues to track at 6% below the HPI.

What might 9 CLAMP HILL be worth now?

9 CLAMP HILL might now be worth an estimated £1,124,915.

This is based on house price inflation of 15.4%, between August 2020 and February 2025, for detached houses, in the Harrow local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 15.4% inflationary increase is applied to the most recent sale price for 9 CLAMP HILL of £975,000 on 12th August 2020. For the value to have increased from £975,000 to £1,124,915 over the five years and six months to February 2025, the following assumptions must hold true:

• The value of 9 CLAMP HILL has moved in line with the HPI for detached houses in the Harrow local authority area.
• The August 2020 sale price of £975,000 represented a fair market value for the property.
• The size, condition, and specification of 9 CLAMP HILL has not materially changed since August 2020.

How Large is 9 CLAMP HILL?

9 CLAMP HILL is 193m², which includes two extensions, according to the EPC inspection conducted in June 2019. This puts it in the largest 30% of detached houses houses in London, based on EPC data. The below chart shows the distribution of detached houses houses by size in London, and where 9 CLAMP HILL lies on this distribution: 72% of detached houses houses are smaller than 9 CLAMP HILL, and 27% of houses are larger. Note that EPC data is not available for all properties in London.

9 CLAMP HILL: Plot and Title Map

9 CLAMP HILL sits on a plot of roughly 0.135 of an acre, or 546m². The below map shows the location of 9 CLAMP HILL, 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 CLAMP HILL). 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 9 CLAMP HILL?

9 CLAMP HILL is located in STANMORE, in the HA7 postcode district. The below map shows the position of No. 9 on CLAMP HILL.