THE DOWER HOUSE, GROVE MILL LANE, WATFORD, WD17 3TU - £3,860,000

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

THE DOWER HOUSE is a very large extended detached house of 451m², built sometime before 1900. It was last sold for £3,860,000 in July 2014, which was around 546% above the average July 2014 detached price in the Watford local authority area. The most recent EPC inspection was March 2024, where the current energy rating was E, and the potential energy rating was D.

THE DOWER HOUSE Sold Prices

Land registry data shows three sales for THE DOWER HOUSE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Watford local authority area for the corresponding sale date. All of the three THE DOWER HOUSE 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
2014 28 JUL	£3,860,000	£597,850	546% above HPI
2009 10 AUG	£4,000,000	£422,215	847% above HPI
1998 9 JAN	£915,000	£176,747	418% above HPI

THE DOWER HOUSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Watford local authority area over time, sourced from the HPI. The three THE DOWER HOUSE sales between January 1998 and July 2014 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 2009 sale was for 847% above the HPI. So the extrapolation line tracks at 847% above the HPI over time, until the July 2014 sale, where it falls to 546% above the HPI. The line then continues to track at 546% above the HPI.

What might THE DOWER HOUSE be worth now?

THE DOWER HOUSE might now be worth an estimated £5,727,805.

This is based on house price inflation of 48.4%, between July 2014 and December 2024, for detached houses, in the Watford local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 48.4% inflationary increase is applied to the most recent sale price for THE DOWER HOUSE of £3,860,000 on 28th July 2014. For the value to have increased from £3,860,000 to £5,727,805 over the nine years and seven months to December 2024, the following assumptions must hold true:

• The value of THE DOWER HOUSE has moved in line with the HPI for detached houses in the Watford local authority area.
• The July 2014 sale price of £3,860,000 represented a fair market value for the property.
• The size, condition, and specification of THE DOWER HOUSE has not materially changed since July 2014.

How Large is THE DOWER HOUSE?

THE DOWER HOUSE is 451m², which includes four extensions, according to the EPC inspection conducted in March 2024. This puts it in the largest 10% of detached houses houses in Watford, based on EPC data. The below chart shows the distribution of detached houses houses by size in Watford, and where THE DOWER HOUSE lies on this distribution: More than 99% of detached houses houses are smaller than THE DOWER HOUSE, and less than 1% of houses are larger. Note that EPC data is not available for all properties in Watford.

THE DOWER HOUSE: Plot and Title Map

THE DOWER HOUSE sits on a plot of roughly 1.3 acres, or 5,217m². The below map shows the location of THE DOWER HOUSE, 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 THE DOWER HOUSE). 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 THE DOWER HOUSE?

THE DOWER HOUSE is located on GROVE MILL LANE in WATFORD, in the WD17 postcode district. The below map shows the position of THE DOWER HOUSE on GROVE MILL LANE.