71, GERLLAN, TYWYN, LL36 9DE - £323,000

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.

71 GERLLAN is a large extended detached house of 124m², built sometime between 1976 and 1982, which could now be worth an estimated £331,710. It was last sold for £323,000 in July 2025, which was around 8% above the average July 2025 detached price in the Gwynedd local authority area. The most recent EPC inspection was June 2023, where the current energy rating was C, and the potential energy rating was B.

71 GERLLAN Sold Prices

Land registry data shows two sales for 71 GERLLAN since 1^st January 1995. The below table shows the price paid for the two sales, along with the average detached price in the Gwynedd local authority area for the corresponding sale date. One of the two 71 GERLLAN sales was for above the average price, whilst the other was 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
2025 28 JUL	£323,000	£299,418	8% above HPI
1997 5 DEC	£65,500	£66,987	2% below HPI

71 GERLLAN Price Paid vs. HPI Average

The below graph shows the average detached house price in the Gwynedd local authority area over time, sourced from the HPI. The two 71 GERLLAN sales from December 1997 and July 2025 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 1997 sale was for 2% below the HPI. So the extrapolation line tracks at 2% below the HPI over time, until the July 2025 sale, where it rises to 8% above the HPI. The line then continues to track at 8% above the HPI.

What might 71 GERLLAN be worth now?

71 GERLLAN might now be worth an estimated £331,710.

This is based on house price inflation of 2.7%, between July 2025 and April 2026, for detached houses, in the Gwynedd local authority area, as calculated by the Office for National Statistics and published in their UK House Price Index (HPI).

The 2.7% inflationary increase is applied to the most recent sale price for 71 GERLLAN of £323,000 on 28th July 2025. For the value to have increased from £323,000 to £331,710 over the one year and three months to April 2026, the following assumptions must hold true:

• The value of 71 GERLLAN has moved in line with the HPI for detached houses in the Gwynedd local authority area.
• The July 2025 sale price of £323,000 represented a fair market value for the property.
• The size, condition, and specification of 71 GERLLAN has not materially changed since July 2025.

How Large is 71 GERLLAN?

71 GERLLAN is 124m², which includes one extension, according to the EPC inspection conducted in June 2023. This puts it in the largest 40% of detached houses houses in Tywyn, based on EPC data. The below chart shows the distribution of detached houses houses by size in Tywyn, and where 71 GERLLAN lies on this distribution: 65% of detached houses houses are smaller than 71 GERLLAN, and 35% of houses are larger. Note that EPC data is not available for all properties in Tywyn.

71 GERLLAN: Plot and Title Map

71 GERLLAN sits on a plot of roughly 0.086 of an acre, or 350m². The below map shows the location of 71 GERLLAN, 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 71 GERLLAN). 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 71 GERLLAN?

71 GERLLAN is located in TYWYN, in the LL36 postcode district. The below map shows the position of No. 71 on GERLLAN.