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 KNAPTON LANE is a large extended semi-detached house of 124m², built sometime between 1900 and 1929, which could now be worth an estimated £441,816. It was last sold for £432,500 in February 2024, which was around 34% above the average February 2024 semi-detached price in the York local authority area. The most recent EPC inspection was September 2022, where the current energy rating was C, and the potential energy rating was B.
Land registry data shows two sales for 21 KNAPTON LANE since 1st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the York local authority area for the corresponding sale date. One of the two 21 KNAPTON LANE sales was for above the average price, whilst the other 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 |
---|---|---|---|
2024 2 FEB | £432,500 | £322,574 | ![]() 34% above HPI |
2001 27 APR | £55,000 | £84,228 | ![]() 35% below HPI |
The below graph shows the average semi-detached house price in the York local authority area over time, sourced from the HPI. The two 21 KNAPTON LANE sales from April 2001 and February 2024 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 2001 sale was for 35% below the HPI. So the extrapolation line tracks at 35% below the HPI over time, until the February 2024 sale, where it rises to 34% above the HPI. The line then continues to track at 34% above the HPI.
21 KNAPTON LANE might now be worth an estimated £441,816.
This is based on house price inflation of 2.2%, between February 2024 and June 2025, for semi-detached houses, in the York local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).
The 2.2% inflationary increase is applied to the most recent sale price for 21 KNAPTON LANE of £432,500 on 2nd February 2024. For the value to have increased from £432,500 to £441,816 over the eight months to June 2025, the following assumptions must hold true:
21 KNAPTON LANE is 124m², which includes two extensions, according to the EPC inspection conducted in September 2022. This puts it in the largest 40% of semi-detached houses houses in York, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in York, and where 21 KNAPTON LANE lies on this distribution: 65% of semi-detached houses houses are smaller than 21 KNAPTON LANE, and 34% of houses are larger. Note that EPC data is not available for all properties in York.
21 KNAPTON LANE sits on a plot of roughly 0.120 of an acre, or 485m². The below map shows the location of 21 KNAPTON LANE, 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 KNAPTON LANE). 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 KNAPTON LANE is located in YORK, in the YO26 postcode district. The below map shows the position of No. 21 on KNAPTON LANE.
Most recent sales first: