55, GLOUCESTER AVENUE, SIDCUP, DA15 7LP - £760,500

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.

55 GLOUCESTER AVENUE is a small extended semi-detached house of 124m², built sometime between 1930 and 1949, which could now be worth an estimated £757,522. It was last sold for £760,500 in January 2026, which was around 44% above the average January 2026 semi-detached price in the Bexley local authority area. The most recent EPC inspection was September 2025, where the current energy rating was C, and the potential energy rating was C.

55 GLOUCESTER AVENUE Sold Prices

Land registry data shows two sales for 55 GLOUCESTER AVENUE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average semi-detached price in the Bexley local authority area for the corresponding sale date. Both of the two 55 GLOUCESTER AVENUE 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
2026 21 JAN	£760,500	£529,187	44% above HPI
2015 19 JUN	£430,000	£332,178	29% above HPI

55 GLOUCESTER AVENUE Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Bexley local authority area over time, sourced from the HPI. The two 55 GLOUCESTER AVENUE sales from June 2015 and January 2026 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 June 2015 sale was for 29% above the HPI. So the extrapolation line tracks at 29% above the HPI over time, until the January 2026 sale, where it rises to 44% above the HPI. The line then continues to track at 44% above the HPI.

What might 55 GLOUCESTER AVENUE be worth now?

55 GLOUCESTER AVENUE might now be worth an estimated £757,522.

This is based on house price deflation of 0.4%, between January 2026 and April 2026, for semi-detached houses, in the Bexley local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 0.4% deflationary decrease is applied to the most recent sale price for 55 GLOUCESTER AVENUE of £760,500 on 21st January 2026. For the value to have decreased from £760,500 to £757,522 over the nine months to April 2026, the following assumptions must hold true:

• The value of 55 GLOUCESTER AVENUE has moved in line with the HPI for semi-detached houses in the Bexley local authority area.
• The January 2026 sale price of £760,500 represented a fair market value for the property.
• The size, condition, and specification of 55 GLOUCESTER AVENUE has not materially changed since January 2026.

How Large is 55 GLOUCESTER AVENUE?

55 GLOUCESTER AVENUE is 124m², which includes two extensions, according to the EPC inspection conducted in September 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 55 GLOUCESTER AVENUE lies on this distribution: 36% of semi-detached houses houses are smaller than 55 GLOUCESTER AVENUE, and 64% of houses are larger. Note that EPC data is not available for all properties in London.

55 GLOUCESTER AVENUE: Plot and Title Map

55 GLOUCESTER AVENUE sits on a plot of roughly 0.055 of an acre, or 221m². The below map shows the location of 55 GLOUCESTER 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 55 GLOUCESTER 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 55 GLOUCESTER AVENUE?

55 GLOUCESTER AVENUE is located in SIDCUP, in the DA15 postcode district. The below map shows the position of No. 55 on GLOUCESTER AVENUE.