75, NORTHIAM, LONDON, N12 7JH - £870,000

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.

75 NORTHIAM is a large extended semi-detached house of 171m², built sometime between 1930 and 1949, which could now be worth an estimated £1,592,264. It was last sold for £870,000 in June 2011, which was around 92% above the average June 2011 semi-detached price in the Barnet local authority area. The most recent EPC inspection was September 2021, where the current energy rating was E, and the potential energy rating was B.

75 NORTHIAM Sold Prices

Land registry data shows two sales for 75 NORTHIAM since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Barnet local authority area for the corresponding sale date. Both of the two 75 NORTHIAM 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
2011 15 JUN	£870,000	£452,190	92% above HPI
2004 14 MAY	£620,000	£353,527	75% above HPI

75 NORTHIAM Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Barnet local authority area over time, sourced from the HPI. The two 75 NORTHIAM sales from May 2004 and June 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 May 2004 sale was for 75% above the HPI. So the extrapolation line tracks at 75% above the HPI over time, until the June 2011 sale, where it rises to 92% above the HPI. The line then continues to track at 92% above the HPI.

What might 75 NORTHIAM be worth now?

75 NORTHIAM might now be worth an estimated £1,592,264.

This is based on house price inflation of 83%, between June 2011 and July 2025, for semi-detached houses, in the Barnet local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 83% inflationary increase is applied to the most recent sale price for 75 NORTHIAM of £870,000 on 15th June 2011. For the value to have increased from £870,000 to £1,592,264 over the thirteen years and eleven months to July 2025, the following assumptions must hold true:

• The value of 75 NORTHIAM has moved in line with the HPI for semi-detached houses in the Barnet local authority area.
• The June 2011 sale price of £870,000 represented a fair market value for the property.
• The size, condition, and specification of 75 NORTHIAM has not materially changed since June 2011.

How Large is 75 NORTHIAM?

75 NORTHIAM is 171m², which includes one extension, according to the EPC inspection conducted in September 2021. This puts it in the largest 40% of semi-detached houses houses in London, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in London, and where 75 NORTHIAM lies on this distribution: 64% of semi-detached houses houses are smaller than 75 NORTHIAM, and 36% of houses are larger. Note that EPC data is not available for all properties in London.

75 NORTHIAM: Plot and Title Map

75 NORTHIAM sits on a plot of roughly 0.104 of an acre, or 419m². The below map shows the location of 75 NORTHIAM, 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 75 NORTHIAM). 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 75 NORTHIAM?

75 NORTHIAM is located in LONDON, in the N12 postcode district. The below map shows the position of No. 75 on NORTHIAM.