13, NANCY DOWNS, WATFORD, WD19 4NF - £2,900,000

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.

13 NANCY DOWNS is a very large extended detached house of 333m², built sometime between 1900 and 1929, which could now be worth an estimated £2,857,027. It was last sold for £2,900,000 in May 2025, which was around 140% above the average May 2025 detached price in the Three Rivers local authority area. The most recent EPC inspection was August 2024, where the current energy rating was D, and the potential energy rating was C.

13 NANCY DOWNS Sold Prices

Land registry data shows two sales for 13 NANCY DOWNS since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Three Rivers local authority area for the corresponding sale date. Both of the two 13 NANCY DOWNS 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
2025 14 MAY	£2,900,000	£1,210,660	140% above HPI
1998 16 FEB	£425,000	£255,546	66% above HPI

13 NANCY DOWNS Price Paid vs. HPI Average

The below graph shows the average detached house price in the Three Rivers local authority area over time, sourced from the HPI. The two 13 NANCY DOWNS sales from February 1998 and May 2025 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 February 1998 sale was for 66% above the HPI. So the extrapolation line tracks at 66% above the HPI over time, until the May 2025 sale, where it rises to 140% above the HPI. The line then continues to track at 140% above the HPI.

What might 13 NANCY DOWNS be worth now?

13 NANCY DOWNS might now be worth an estimated £2,857,027.

This is based on house price deflation of 1.5%, between May 2025 and October 2025, for detached houses, in the Three Rivers local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 1.5% deflationary decrease is applied to the most recent sale price for 13 NANCY DOWNS of £2,900,000 on 14th May 2025. For the value to have decreased from £2,900,000 to £2,857,027 over the seven months to October 2025, the following assumptions must hold true:

• The value of 13 NANCY DOWNS has moved in line with the HPI for detached houses in the Three Rivers local authority area.
• The May 2025 sale price of £2,900,000 represented a fair market value for the property.
• The size, condition, and specification of 13 NANCY DOWNS has not materially changed since May 2025.

How Large is 13 NANCY DOWNS?

13 NANCY DOWNS is 333m², which includes one extension, according to the EPC inspection conducted in August 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 13 NANCY DOWNS lies on this distribution: 98% of detached houses houses are smaller than 13 NANCY DOWNS, and 2% of houses are larger. Note that EPC data is not available for all properties in Watford.

13 NANCY DOWNS: Plot and Title Map

13 NANCY DOWNS sits on a plot of roughly 0.935 of an acre, or 3,783m². The below map shows the location of 13 NANCY DOWNS, 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 13 NANCY DOWNS). 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 13 NANCY DOWNS?

13 NANCY DOWNS is located in WATFORD, in the WD19 postcode district. The below map shows the position of No. 13 on NANCY DOWNS.