14, CARMARTHEN AVENUE, PORTSMOUTH, PO6 2AQ - £645,000

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.

14 CARMARTHEN AVENUE is a very large extended detached house of 226m², built sometime between 1930 and 1949, which could now be worth an estimated £786,537. It was last sold for £645,000 in January 2018, which was around 52% above the average January 2018 detached price in the Portsmouth local authority area. The most recent EPC inspection was November 2014, where the current energy rating was D, and the potential energy rating was C.

14 CARMARTHEN AVENUE Sold Prices

Land registry data shows three sales for 14 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 14 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 26 JAN	£645,000	£423,186	52% above HPI
2003 28 AUG	£360,000	£254,725	41% above HPI
1997 30 APR	£148,000	£107,066	38% above HPI

14 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 14 CARMARTHEN AVENUE sales between April 1997 and January 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 August 2003 sale was for 41% above the HPI. So the extrapolation line tracks at 41% above the HPI over time, until the January 2018 sale, where it rises to 52% above the HPI. The line then continues to track at 52% above the HPI.

What might 14 CARMARTHEN AVENUE be worth now?

14 CARMARTHEN AVENUE might now be worth an estimated £786,537.

This is based on house price inflation of 21.9%, between January 2018 and February 2025, for detached houses, in the Portsmouth local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 21.9% inflationary increase is applied to the most recent sale price for 14 CARMARTHEN AVENUE of £645,000 on 26th January 2018. For the value to have increased from £645,000 to £786,537 over the six years and eleven months to February 2025, the following assumptions must hold true:

• The value of 14 CARMARTHEN AVENUE has moved in line with the HPI for detached houses in the Portsmouth local authority area.
• The January 2018 sale price of £645,000 represented a fair market value for the property.
• The size, condition, and specification of 14 CARMARTHEN AVENUE has not materially changed since January 2018.

How Large is 14 CARMARTHEN AVENUE?

14 CARMARTHEN AVENUE is 226m², which includes three extensions, according to the EPC inspection conducted in November 2014. This puts it in the largest 10% of detached houses houses in Portsmouth, based on EPC data. The below chart shows the distribution of detached houses houses by size in Portsmouth, and where 14 CARMARTHEN AVENUE lies on this distribution: 92% of detached houses houses are smaller than 14 CARMARTHEN AVENUE, and 8% of houses are larger. Note that EPC data is not available for all properties in Portsmouth.

14 CARMARTHEN AVENUE: Plot and Title Map

14 CARMARTHEN AVENUE sits on a plot of roughly 0.141 of an acre, or 571m². The below map shows the location of 14 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 14 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 14 CARMARTHEN AVENUE?

14 CARMARTHEN AVENUE is located in PORTSMOUTH, in the PO6 postcode district. The below map shows the position of No. 14 on CARMARTHEN AVENUE.