3, OBSERVER DRIVE, WATFORD, WD18 7GR - £396,000

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

3 OBSERVER DRIVE is a large extended detached house of 177m², built sometime between 2003 and 2006. It was last sold for £396,000 in August 2011, which was around 19% below the average August 2011 detached price in the Watford local authority area. The most recent EPC inspection was June 2023, where the current energy rating was C, and the potential energy rating was B.

3 OBSERVER DRIVE Sold Prices

Land registry data shows two sales for 3 OBSERVER DRIVE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Watford local authority area for the corresponding sale date. Both of the two 3 OBSERVER DRIVE 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
2011 10 AUG	£396,000	£486,858	19% below HPI
2006 20 JAN	£370,000	£402,603	8% below HPI

3 OBSERVER DRIVE 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 two 3 OBSERVER DRIVE sales from January 2006 and August 2011 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 January 2006 sale was for 8% below the HPI. So the extrapolation line tracks at 8% below the HPI over time, until the August 2011 sale, where it falls to 19% below the HPI. The line then continues to track at 19% below the HPI.

What might 3 OBSERVER DRIVE be worth now?

3 OBSERVER DRIVE might now be worth an estimated £721,583.

This is based on house price inflation of 82.2%, between August 2011 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 82.2% inflationary increase is applied to the most recent sale price for 3 OBSERVER DRIVE of £396,000 on 10th August 2011. For the value to have increased from £396,000 to £721,583 over the twelve years and eight months to December 2024, the following assumptions must hold true:

• The value of 3 OBSERVER DRIVE has moved in line with the HPI for detached houses in the Watford local authority area.
• The August 2011 sale price of £396,000 represented a fair market value for the property.
• The size, condition, and specification of 3 OBSERVER DRIVE has not materially changed since August 2011.

How Large is 3 OBSERVER DRIVE?

3 OBSERVER DRIVE is 177m², which includes two extensions, according to the EPC inspection conducted in June 2023. This puts it in the largest 30% 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 3 OBSERVER DRIVE lies on this distribution: 76% of detached houses houses are smaller than 3 OBSERVER DRIVE, and 23% of houses are larger. Note that EPC data is not available for all properties in Watford.

3 OBSERVER DRIVE: Plot and Title Map

3 OBSERVER DRIVE sits on a plot of roughly 0.042 of an acre, or 168m². The below map shows the location of 3 OBSERVER DRIVE, 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 3 OBSERVER DRIVE). 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 3 OBSERVER DRIVE?

3 OBSERVER DRIVE is located in WATFORD, in the WD18 postcode district. The below map shows the position of No. 3 on OBSERVER DRIVE.