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20, THE SINNATTS, NEATH, SA10 7BY - £145,000

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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.

20 THE SINNATTS is a very small extended semi-detached house of 57m², built sometime between 1983 and 1990, which could now be worth an estimated £216,229. It was last sold for £145,000 in August 2019, which was around 31% above the average August 2019 semi-detached price in the Neath Port Talbot local authority area. The most recent EPC inspection was August 2016, where the current energy rating was D, and the potential energy rating was B.

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20 THE SINNATTS Sold Prices

Land registry data shows three sales for 20 THE SINNATTS since 1st January 1995. The below table shows the price paid for the three sales, along with the average semi-detached price in the Neath Port Talbot local authority area for the corresponding sale date. All of the three 20 THE SINNATTS sales were for above the average price. The average price is sourced from the Office for National Statistics' House Price Index (HPI).

DatePriceHPI PriceVariation from HPI
2019
30 AUG
£145,000£110,560
up arrow
31% above HPI
2016
30 SEP
£120,000£97,282
up arrow
23% above HPI
2007
30 MAR
£120,000£100,574
up arrow
19% above HPI

20 THE SINNATTS Price Paid vs. HPI Average

The below graph shows the average semi-detached house price in the Neath Port Talbot local authority area over time, sourced from the HPI. The three 20 THE SINNATTS sales between March 2007 and August 2019 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 September 2016 sale was for 23% above the HPI. So the extrapolation line tracks at 23% above the HPI over time, until the August 2019 sale, where it rises to 31% above the HPI. The line then continues to track at 31% above the HPI.

20, THE SINNATTS, NEATH, SA10 7BY: Price paid vs HM Land Registry's House Price Index

What might 20 THE SINNATTS be worth now?

20 THE SINNATTS might now be worth an estimated £216,229.

This is based on house price inflation of 49.1%, between August 2019 and May 2026, for semi-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 49.1% inflationary increase is applied to the most recent sale price for 20 THE SINNATTS of £145,000 on 30th August 2019. For the value to have increased from £145,000 to £216,229 over the seven years and three months to May 2026, the following assumptions must hold true:

  • The value of 20 THE SINNATTS has moved in line with the HPI for semi-detached houses in the Neath Port Talbot local authority area.
  • The August 2019 sale price of £145,000 represented a fair market value for the property.
  • The size, condition, and specification of 20 THE SINNATTS has not materially changed since August 2019.
Disclaimer: Please note that this is a theoretical estimate based on assumptions which may or may not be correct. It should not be relied on for any purpose.

How Large is 20 THE SINNATTS?

20 THE SINNATTS is 57m², which includes one extension, according to the EPC inspection conducted in August 2016. This puts it in the smallest 10% of semi-detached houses houses in Neath, based on EPC data. The below chart shows the distribution of semi-detached houses houses by size in Neath, and where 20 THE SINNATTS lies on this distribution: 1% of semi-detached houses houses are smaller than 20 THE SINNATTS, and 98% of houses are larger. Note that EPC data is not available for all properties in Neath.

20, THE SINNATTS, NEATH, SA10 7BY: Size of property relative to semi-detached houses in Neath

20 THE SINNATTS: Plot and Title Map

20 THE SINNATTS sits on a plot of roughly 0.086 of an acre, or 349m². The below map shows the location of 20 THE SINNATTS, 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 20 THE SINNATTS). 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.

20, THE SINNATTS, NEATH, SA10 7BY: Plot and title map

Where is 20 THE SINNATTS?

20 THE SINNATTS is located in NEATH, in the SA10 postcode district. The below map shows the position of No. 20 on THE SINNATTS.

20, THE SINNATTS, NEATH, SA10 7BY: Location map and indicative extent of plot

All property sales on THE SINNATTS

Most recent sales first:

Limited data available
2025
30 JUN
£150,000
Full data available
2024
28 MAR
£165,000
Limited data available
2023
24 JAN
£155,000
Full data available
2022
20 JUL
£185,000
Full data available
2019
30 AUG
£145,000
Limited data available
2018
14 NOV
£131,000
Limited data available
2018
26 MAR
£122,000
Full data available
2017
30 NOV
£120,000
Limited data available
2017
18 AUG
£70,000
Full data available
2017
28 JUL
£120,000
Full data available
2017
1 FEB
£108,000
Full data available
2016
30 SEP
£120,000
Full data available
2015
12 FEB
£145,000
Full data available
2013
17 MAY
£92,000
Full data available
2013
17 MAY
£84,000
Full data available
2011
28 JAN
£120,000
Limited data available
2009
23 OCT
£137,000
Full data available
2007
30 MAR
£120,000
Full data available
2006
10 NOV
£84,000
Limited data available
2006
21 JUL
£140,000
Limited data available
2004
19 JAN
£64,000
Full data available
2003
13 MAR
£65,000
Full data available
2001
14 SEP
£65,000
Limited data available
2001
15 AUG
£48,000
Limited data available
2001
29 JUN
£45,000
Limited data available
1999
30 APR
£58,000
Full data available
1998
13 AUG
£40,000
Limited data available
1997
18 NOV
£46,000
Limited data available
1996
21 JUN
£40,000
Full data available
1996
17 MAY
£35,000
Source: HM Land Registry Price Paid Data
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Source: HM Land Registry UK House Price Index
Licence: Contains HM Land Registry data © Crown copyright and database right 2026. This data is licensed under the Open Government Licence v3.0.
Copyright statement: This information is subject to Crown copyright and database rights 2026 and is reproduced with the permission of HM Land Registry. The polygons (including the associated geometry, namely x, y co-ordinates) are subject to Crown copyright and database rights 2026 Ordnance Survey 100026316. Conditions of use.