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 HAININGHEAD is a very large extended detached house of 192m², built sometime between 1983 and 1990, which could now be worth an estimated £407,418. It was last sold for £273,500 in September 2004, which was around 55% above the average September 2004 detached price in the Sunderland local authority area. The most recent EPC inspection was June 2025, where the current energy rating was C, and the potential energy rating was C.
Land registry data shows two sales for 21 HAININGHEAD since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Sunderland local authority area for the corresponding sale date. Both of the two 21 HAININGHEAD 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 |
|---|---|---|---|
2004 1 SEP | £273,500 | £176,242 | 55% above HPI |
2000 31 MAR | £129,000 | £82,927 | 56% above HPI |
The below graph shows the average detached house price in the Sunderland local authority area over time, sourced from the HPI. The two 21 HAININGHEAD sales from March 2000 and September 2004 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 March 2000 sale was for 56% above the HPI. So the extrapolation line tracks at 56% above the HPI over time, until the September 2004 sale, where it falls to 55% above the HPI. The line then continues to track at 55% above the HPI.

21 HAININGHEAD might now be worth an estimated £407,418.
This is based on house price inflation of 49%, between September 2004 and May 2026, for detached houses, in the Sunderland local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 49% inflationary increase is applied to the most recent sale price for 21 HAININGHEAD of £273,500 on 1st September 2004. For the value to have increased from £273,500 to £407,418 over the 22 years and four months to May 2026, the following assumptions must hold true:
21 HAININGHEAD is 192m², which includes four extensions, according to the EPC inspection conducted in June 2025. This puts it in the largest 20% of detached houses houses in Washington, based on EPC data. The below chart shows the distribution of detached houses houses by size in Washington, and where 21 HAININGHEAD lies on this distribution: 88% of detached houses houses are smaller than 21 HAININGHEAD, and 11% of houses are larger. Note that EPC data is not available for all properties in Washington.

21 HAININGHEAD sits on a plot of roughly 0.113 of an acre, or 456m². The below map shows the location of 21 HAININGHEAD, 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 HAININGHEAD). 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.

21 HAININGHEAD is located in WASHINGTON, in the NE38 postcode district. The below map shows the position of No. 21 on HAININGHEAD.

Most recent sales first: