ISLIP HOUSE, MILDRED AVENUE, BOREHAMWOOD, WD6 2DH - £1,300,000

Based on the December 2024 Price Paid Data (released on 29th January 2025), the November 2024 House Price Index (released on 15th January 2025), and the December 2024 Energy Performance of Buildings Data (released on 31st January 2025). Sources

ISLIP HOUSE is a very large extended detached house of 277m², built sometime between 1930 and 1949. It was last sold for £1,300,000 in November 2021, which was around 18% above the average November 2021 detached price in the Hertsmere local authority area. The most recent EPC inspection was April 2021, where the current energy rating was D, and the potential energy rating was C.

ISLIP HOUSE Sold Prices

Land registry data shows two sales for ISLIP HOUSE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Hertsmere local authority area for the corresponding sale date. Both of the two ISLIP 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
2021 12 NOV	£1,300,000	£1,103,100	18% above HPI
2009 16 OCT	£675,000	£553,602	22% above HPI

ISLIP HOUSE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Hertsmere local authority area over time, sourced from the HPI. The two ISLIP HOUSE sales from October 2009 and November 2021 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 October 2009 sale was for 22% above the HPI. So the extrapolation line tracks at 22% above the HPI over time, until the November 2021 sale, where it falls to 18% above the HPI. The line then continues to track at 18% above the HPI.

How Large is ISLIP HOUSE?

ISLIP HOUSE is 277m², which includes two extensions, according to the EPC inspection conducted in April 2021. This puts it in the largest 20% of detached houses in Borehamwood, based on EPC data. The below chart shows the distribution of detached houses by size in Borehamwood, and where ISLIP HOUSE lies on this distribution: 87% of detached houses are smaller than ISLIP HOUSE, and 13% of houses are larger. Note that EPC data is not available for all properties in Borehamwood.

ISLIP HOUSE: Plot and Title Map

ISLIP HOUSE sits on a plot of roughly 0.270 of an acre, or 1,092m². The below map shows the location of ISLIP 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 ISLIP 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 ISLIP HOUSE?

ISLIP HOUSE is located on MILDRED AVENUE in BOREHAMWOOD, in the WD6 postcode district. The below map shows the position of ISLIP HOUSE on MILDRED AVENUE.