15, TANYWERN LANE, YSTALYFERA, SWANSEA, SA9 2AD - £153,000

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

15 TANYWERN LANE is a very small extended detached house of 50m², built sometime between 1900 and 1929, which could now be worth an estimated £244,896. It was last sold for £153,000 in August 2016, which was around 1% below the average August 2016 detached price in the Neath Port Talbot local authority area. The most recent EPC inspection was October 2009, where the current energy rating was G, and the potential energy rating was F.

15 TANYWERN LANE Sold Prices

Land registry data shows two sales for 15 TANYWERN LANE since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Neath Port Talbot local authority area for the corresponding sale date. Both of the two 15 TANYWERN LANE 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
2016 16 AUG	£153,000	£154,349	1% below HPI
2010 14 MAY	£140,000	£142,290	2% below HPI

15 TANYWERN LANE Price Paid vs. HPI Average

The below graph shows the average detached house price in the Neath Port Talbot local authority area over time, sourced from the HPI. The two 15 TANYWERN LANE sales from May 2010 and August 2016 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 May 2010 sale was for 2% below the HPI. So the extrapolation line tracks at 2% below the HPI over time, until the August 2016 sale, where it rises to 1% below the HPI. The line then continues to track at 1% below the HPI.

What might 15 TANYWERN LANE be worth now?

15 TANYWERN LANE might now be worth an estimated £244,896.

This is based on house price inflation of 60.1%, between August 2016 and December 2024, for detached houses, in the Neath Port Talbot local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 60.1% inflationary increase is applied to the most recent sale price for 15 TANYWERN LANE of £153,000 on 16th August 2016. For the value to have increased from £153,000 to £244,896 over the seven years and eight months to December 2024, the following assumptions must hold true:

• The value of 15 TANYWERN LANE has moved in line with the HPI for detached houses in the Neath Port Talbot local authority area.
• The August 2016 sale price of £153,000 represented a fair market value for the property.
• The size, condition, and specification of 15 TANYWERN LANE has not materially changed since August 2016.

How Large is 15 TANYWERN LANE?

15 TANYWERN LANE is 50m², which includes one extension, according to the EPC inspection conducted in October 2009. This puts it in the smallest 10% of detached houses houses in Ystalyfera, based on EPC data. The below chart shows the distribution of detached houses houses by size in Ystalyfera, and where 15 TANYWERN LANE lies on this distribution: 1% of detached houses houses are smaller than 15 TANYWERN LANE, and 99% of houses are larger. Note that EPC data is not available for all properties in Ystalyfera.

15 TANYWERN LANE: Plot and Title Map

15 TANYWERN LANE sits on a plot of roughly 0.143 of an acre, or 580m². The below map shows the location of 15 TANYWERN LANE, 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 15 TANYWERN LANE). 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 15 TANYWERN LANE?

15 TANYWERN LANE is located in YSTALYFERA, in the SA9 postcode district. The below map shows the position of No. 15 on TANYWERN LANE.