11, PENTWYN AVENUE, BLACKWOOD, NP12 1HS - £460,000

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.

11 PENTWYN AVENUE is a very large extended detached house of 210m², built sometime between 1930 and 1949, which could now be worth an estimated £599,297. It was last sold for £460,000 in January 2021, which was around 93% above the average January 2021 detached price in the Caerphilly local authority area. The most recent EPC inspection was May 2013, where the current energy rating was D, and the potential energy rating was C.

11 PENTWYN AVENUE Sold Prices

Land registry data shows two sales for 11 PENTWYN 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 Caerphilly local authority area for the corresponding sale date. Both of the two 11 PENTWYN 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
2021 25 JAN	£460,000	£238,597	93% above HPI
2003 17 JUL	£165,000	£109,605	51% above HPI

11 PENTWYN AVENUE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Caerphilly local authority area over time, sourced from the HPI. The two 11 PENTWYN AVENUE sales from July 2003 and January 2021 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 July 2003 sale was for 51% above the HPI. So the extrapolation line tracks at 51% above the HPI over time, until the January 2021 sale, where it rises to 93% above the HPI. The line then continues to track at 93% above the HPI.

What might 11 PENTWYN AVENUE be worth now?

11 PENTWYN AVENUE might now be worth an estimated £599,297.

This is based on house price inflation of 30.3%, between January 2021 and February 2025, for detached houses, in the Caerphilly local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 30.3% inflationary increase is applied to the most recent sale price for 11 PENTWYN AVENUE of £460,000 on 25th January 2021. For the value to have increased from £460,000 to £599,297 over the three years and eleven months to February 2025, the following assumptions must hold true:

• The value of 11 PENTWYN AVENUE has moved in line with the HPI for detached houses in the Caerphilly local authority area.
• The January 2021 sale price of £460,000 represented a fair market value for the property.
• The size, condition, and specification of 11 PENTWYN AVENUE has not materially changed since January 2021.

How Large is 11 PENTWYN AVENUE?

11 PENTWYN AVENUE is 210m², which includes one extension, according to the EPC inspection conducted in May 2013. This puts it in the largest 10% of detached houses houses in Blackwood, based on EPC data. The below chart shows the distribution of detached houses houses by size in Blackwood, and where 11 PENTWYN AVENUE lies on this distribution: 96% of detached houses houses are smaller than 11 PENTWYN AVENUE, and 4% of houses are larger. Note that EPC data is not available for all properties in Blackwood.

11 PENTWYN AVENUE: Plot and Title Map

11 PENTWYN AVENUE sits on a plot of roughly 0.212 of an acre, or 858m². The below map shows the location of 11 PENTWYN 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 11 PENTWYN 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 11 PENTWYN AVENUE?

11 PENTWYN AVENUE is located in BLACKWOOD, in the NP12 postcode district. The below map shows the position of No. 11 on PENTWYN AVENUE.