21, DURHAM ROAD, HARROW, HA1 4PG - £550,000

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.

21 DURHAM ROAD is a small extended semi-detached house of 117m², built sometime between 1900 and 1929, which could now be worth an estimated £789,672. It was last sold for £550,000 in November 2014, which was around 18% above the average November 2014 semi-detached price in the Harrow local authority area. The most recent EPC inspection was July 2025, where the current energy rating was C, and the potential energy rating was B.

21 DURHAM ROAD Sold Prices

Land registry data shows three sales for 21 DURHAM ROAD since 1^st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Harrow local authority area for the corresponding sale date. Two of the three 21 DURHAM ROAD sales were for above the average price, whilst one was 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
2014 13 NOV	£550,000	£465,241	18% above HPI
2009 29 APR	£333,000	£293,822	13% above HPI
2004 26 MAR	£249,950	£282,959	12% below HPI

21 DURHAM ROAD Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Harrow local authority area over time, sourced from the HPI. The three 21 DURHAM ROAD sales between March 2004 and November 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 April 2009 sale was for 13% above the HPI. So the extrapolation line tracks at 13% above the HPI over time, until the November 2014 sale, where it rises to 18% above the HPI. The line then continues to track at 18% above the HPI.

What might 21 DURHAM ROAD be worth now?

21 DURHAM ROAD might now be worth an estimated £789,672.

This is based on house price inflation of 43.6%, between November 2014 and May 2026, for semi-detached houses, in the Harrow local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 43.6% inflationary increase is applied to the most recent sale price for 21 DURHAM ROAD of £550,000 on 13th November 2014. For the value to have increased from £550,000 to £789,672 over the twelve years and six months to May 2026, the following assumptions must hold true:

• The value of 21 DURHAM ROAD has moved in line with the HPI for semi-detached houses in the Harrow local authority area.
• The November 2014 sale price of £550,000 represented a fair market value for the property.
• The size, condition, and specification of 21 DURHAM ROAD has not materially changed since November 2014.

How Large is 21 DURHAM ROAD?

21 DURHAM ROAD is 117m², which includes two extensions, according to the EPC inspection conducted in July 2025. This puts it in the smallest 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 21 DURHAM ROAD lies on this distribution: 31% of semi-detached houses houses are smaller than 21 DURHAM ROAD, and 69% of houses are larger. Note that EPC data is not available for all properties in London.

21 DURHAM ROAD: Plot and Title Map

21 DURHAM ROAD sits on a plot of roughly 0.064 of an acre, or 261m². The below map shows the location of 21 DURHAM ROAD, 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 21 DURHAM ROAD). 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 21 DURHAM ROAD?

21 DURHAM ROAD is located in HARROW, in the HA1 postcode district. The below map shows the position of No. 21 on DURHAM ROAD.