77, CARMARTHEN AVENUE, PORTSMOUTH, PO6 2AG - £842,000

Based on the December 2024 Price Paid Data (released on 29th January 2025), the November 2024 House Price Index (released on 15th January 2025), and the December 2024 Energy Performance of Buildings Data (released on 31st January 2025). Sources

77 CARMARTHEN AVENUE is a very large extended detached house of 261m², built sometime between 1930 and 1949. It was last sold for £842,000 in November 2018, which was around 96% above the average November 2018 detached price in the Portsmouth local authority area. The most recent EPC inspection was July 2018, where the current energy rating was C, and the potential energy rating was C.

77 CARMARTHEN AVENUE Sold Prices

Land registry data shows three sales for 77 CARMARTHEN AVENUE since 1^st January 1995. The below table shows the price paid for the three sales, along with the average detached price in the Portsmouth local authority area for the corresponding sale date. All of the three 77 CARMARTHEN 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
2018 2 NOV	£842,000	£428,715	96% above HPI
2013 25 JAN	£595,000	£290,103	105% above HPI
2002 13 JUN	£375,000	£204,107	84% above HPI

77 CARMARTHEN AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Portsmouth local authority area over time, sourced from the HPI. The three 77 CARMARTHEN AVENUE sales between June 2002 and November 2018 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 January 2013 sale was for 105% above the HPI. So the extrapolation line tracks at 105% above the HPI over time, until the November 2018 sale, where it falls to 96% above the HPI. The line then continues to track at 96% above the HPI.

How Large is 77 CARMARTHEN AVENUE?

77 CARMARTHEN AVENUE is 261m², which includes two extensions, according to the EPC inspection conducted in July 2018. This puts it in the largest 10% of detached houses in Portsmouth, based on EPC data. The below chart shows the distribution of detached houses by size in Portsmouth, and where 77 CARMARTHEN AVENUE lies on this distribution: 95% of detached houses are smaller than 77 CARMARTHEN AVENUE, and 5% of houses are larger. Note that EPC data is not available for all properties in Portsmouth.

77 CARMARTHEN AVENUE: Plot and Title Map

77 CARMARTHEN AVENUE sits on a plot of roughly 0.270 of an acre, or 1,092m². The below map shows the location of 77 CARMARTHEN 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 77 CARMARTHEN 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 77 CARMARTHEN AVENUE?

77 CARMARTHEN AVENUE is located in PORTSMOUTH, in the PO6 postcode district. The below map shows the position of No. 77 on CARMARTHEN AVENUE.