20, LANSDOWNE AVENUE, SLOUGH, SL1 3SJ - £495,000

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

20 LANSDOWNE AVENUE is a small extended detached house of 101m², built sometime between 1967 and 1975, which could now be worth an estimated £513,687. It was last sold for £495,000 in March 2022, which was around 22% below the average March 2022 detached price in the Slough local authority area. The most recent EPC inspection was March 2022, where the current energy rating was C, and the potential energy rating was B.

20 LANSDOWNE AVENUE Sold Prices

Land registry data shows two sales for 20 LANSDOWNE AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Slough local authority area for the corresponding sale date. Both of the two 20 LANSDOWNE AVENUE sales were 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
2022 22 MAR	£495,000	£636,610	22% below HPI
1999 11 NOV	£117,500	£177,349	34% below HPI

20 LANSDOWNE AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Slough local authority area over time, sourced from the HPI. The two 20 LANSDOWNE AVENUE sales from November 1999 and March 2022 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 November 1999 sale was for 34% below the HPI. So the extrapolation line tracks at 34% below the HPI over time, until the March 2022 sale, where it rises to 22% below the HPI. The line then continues to track at 22% below the HPI.

What might 20 LANSDOWNE AVENUE be worth now?

20 LANSDOWNE AVENUE might now be worth an estimated £513,687.

This is based on house price inflation of 3.8%, between March 2022 and December 2024, for detached houses, in the Slough local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 3.8% inflationary increase is applied to the most recent sale price for 20 LANSDOWNE AVENUE of £495,000 on 22nd March 2022. For the value to have increased from £495,000 to £513,687 over the one year and three months to December 2024, the following assumptions must hold true:

• The value of 20 LANSDOWNE AVENUE has moved in line with the HPI for detached houses in the Slough local authority area.
• The March 2022 sale price of £495,000 represented a fair market value for the property.
• The size, condition, and specification of 20 LANSDOWNE AVENUE has not materially changed since March 2022.

How Large is 20 LANSDOWNE AVENUE?

20 LANSDOWNE AVENUE is 101m², which includes two extensions, according to the EPC inspection conducted in March 2022. This puts it in the smallest 40% of detached houses houses in Slough, based on EPC data. The below chart shows the distribution of detached houses houses by size in Slough, and where 20 LANSDOWNE AVENUE lies on this distribution: 32% of detached houses houses are smaller than 20 LANSDOWNE AVENUE, and 67% of houses are larger. Note that EPC data is not available for all properties in Slough.

20 LANSDOWNE AVENUE: Plot and Title Map

20 LANSDOWNE AVENUE sits on a plot of roughly 0.064 of an acre, or 260m². The below map shows the location of 20 LANSDOWNE AVENUE, 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 20 LANSDOWNE AVENUE). 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 20 LANSDOWNE AVENUE?

20 LANSDOWNE AVENUE is located in SLOUGH, in the SL1 postcode district. The below map shows the position of No. 20 on LANSDOWNE AVENUE.