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TYDDYN IOLYN, BENLLECH, TYN-Y-GONGL, LL74 8TG - £465,000

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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.

TYDDYN IOLYN is a very large extended detached house of 174m², built sometime before 1900, which could now be worth an estimated £668,533. It was last sold for £465,000 in September 2018, which was around 104% above the average September 2018 detached price in the Isle of Anglesey local authority area. The most recent EPC inspection was June 2011, where the current energy rating was E, and the potential energy rating was D.

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TYDDYN IOLYN Sold Prices

Land registry data shows two sales for TYDDYN IOLYN since 1st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Isle of Anglesey local authority area for the corresponding sale date. Both of the two TYDDYN IOLYN 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
2018
13 SEP
£465,000£227,393
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104% above HPI
2016
7 DEC
£425,000£215,997
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97% above HPI

TYDDYN IOLYN Price Paid vs. HPI Average

The below graph shows the average detached house price in the Isle of Anglesey local authority area over time, sourced from the HPI. The two TYDDYN IOLYN sales from December 2016 and September 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 December 2016 sale was for 97% above the HPI. So the extrapolation line tracks at 97% above the HPI over time, until the September 2018 sale, where it rises to 104% above the HPI. The line then continues to track at 104% above the HPI.

TYDDYN IOLYN, BENLLECH, TYN-Y-GONGL, LL74 8TG: Price paid vs HM Land Registry's House Price Index

What might TYDDYN IOLYN be worth now?

TYDDYN IOLYN might now be worth an estimated £668,533.

This is based on house price inflation of 43.8%, between September 2018 and May 2026, for detached houses, in the Isle of Anglesey local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 43.8% inflationary increase is applied to the most recent sale price for TYDDYN IOLYN of £465,000 on 13th September 2018. For the value to have increased from £465,000 to £668,533 over the eight years and four months to May 2026, the following assumptions must hold true:

  • The value of TYDDYN IOLYN has moved in line with the HPI for detached houses in the Isle of Anglesey local authority area.
  • The September 2018 sale price of £465,000 represented a fair market value for the property.
  • The size, condition, and specification of TYDDYN IOLYN has not materially changed since September 2018.
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 TYDDYN IOLYN?

TYDDYN IOLYN is 174m², which includes three extensions, according to the EPC inspection conducted in June 2011. This puts it in the largest 10% of detached houses houses in Benllech, based on EPC data. The below chart shows the distribution of detached houses houses by size in Benllech, and where TYDDYN IOLYN lies on this distribution: 92% of detached houses houses are smaller than TYDDYN IOLYN, and 8% of houses are larger. Note that EPC data is not available for all properties in Benllech.

TYDDYN IOLYN, BENLLECH, TYN-Y-GONGL, LL74 8TG: Size of property relative to detached houses in Benllech

TYDDYN IOLYN: Plot and Title Map

TYDDYN IOLYN sits on a plot of roughly 0.395 of an acre, or 1,600m². The below map shows the location of TYDDYN IOLYN, 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 TYDDYN IOLYN). 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.

TYDDYN IOLYN, BENLLECH, TYN-Y-GONGL, LL74 8TG: Plot and title map

Where is TYDDYN IOLYN?

TYDDYN IOLYN is located in BENLLECH, in the LL74 postcode district. The below map shows the position of TYDDYN IOLYN in BENLLECH.

TYDDYN IOLYN, BENLLECH, TYN-Y-GONGL, LL74 8TG: Location map and indicative extent of plot
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.