17, BACK STREET, WINCHESTER, SO23 9SB - £575,000

Based on the January 2025 Price Paid Data (released on 3rd March 2025), the December 2024 House Price Index (released on 19th February 2025), and the January 2025 Energy Performance of Buildings Data (released on 27th February 2025). Sources

17 BACK STREET is a very small detached house of 95m², built sometime between 1950 and 1966, which could now be worth an estimated £943,009. It was last sold for £575,000 in September 2011, which was around 18% above the average September 2011 detached price in the Winchester local authority area. The most recent EPC inspection was April 2011, where the current energy rating was D, and the potential energy rating was D.

17 BACK STREET Sold Prices

Land registry data shows three sales for 17 BACK STREET since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Winchester local authority area for the corresponding sale date. Two of the three 17 BACK STREET 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
2011 8 SEP	£575,000	£487,327	18% above HPI
2006 1 SEP	£480,000	£436,885	10% above HPI
2000 12 JUN	£225,000	£247,898	9% below HPI

17 BACK STREET Price Paid vs. HPI Average

The below graph shows the average detached house price in the Winchester local authority area over time, sourced from the HPI. The three 17 BACK STREET sales between June 2000 and September 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 September 2006 sale was for 10% above the HPI. So the extrapolation line tracks at 10% above the HPI over time, until the September 2011 sale, where it rises to 18% above the HPI. The line then continues to track at 18% above the HPI.

What might 17 BACK STREET be worth now?

17 BACK STREET might now be worth an estimated £943,009.

This is based on house price inflation of 64%, between September 2011 and December 2024, for detached houses, in the Winchester local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 64% inflationary increase is applied to the most recent sale price for 17 BACK STREET of £575,000 on 8th September 2011. For the value to have increased from £575,000 to £943,009 over the twelve years and nine months to December 2024, the following assumptions must hold true:

• The value of 17 BACK STREET has moved in line with the HPI for detached houses in the Winchester local authority area.
• The September 2011 sale price of £575,000 represented a fair market value for the property.
• The size, condition, and specification of 17 BACK STREET has not materially changed since September 2011.

How Large is 17 BACK STREET?

17 BACK STREET is 95m² according to the EPC inspection conducted in April 2011. This puts it in the smallest 20% of detached houses houses in Winchester, based on EPC data. The below chart shows the distribution of detached houses houses by size in Winchester, and where 17 BACK STREET lies on this distribution: 13% of detached houses houses are smaller than 17 BACK STREET, and 87% of houses are larger. Note that EPC data is not available for all properties in Winchester.

17 BACK STREET: Plot and Title Map

17 BACK STREET sits on a plot of roughly 0.107 of an acre, or 432m². The below map shows the location of 17 BACK STREET, 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 17 BACK STREET). 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 17 BACK STREET?

17 BACK STREET is located in WINCHESTER, in the SO23 postcode district. The below map shows the position of No. 17 on BACK STREET.