Trefalyn, Caernarfon occupies a 616 m² plot as recorded by HM Land Registry.

Of the 8 other houses in this postcode, 3 have recorded plot sizes, and this one ranks as the 2nd largest.

Trefalyn, Caernarfon has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 09 Mar 2015.

The property is not connected to mains gas and has fully double glazed windows. It is heated using ground source heat pump (radiators, electric).

Trefalyn, Caernarfon last changed hands on 14th October 2015, selling for £369,950. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has risen by 20.3% since October 2015.

Land Registry records and our Estate Agent network show 693 sales within 2.6 kilometres of Trefalyn, Caernarfon since 2010.

Most recently, 10, Bryn Eglwys, Caernarfon, LL55 3HE, a freehold house, sold at £305,000 on the 25th April 2025.

Read more about house prices in LL55.

• Sold Apr 2025£305,000 | 4 Bed House10, Bryn Eglwys, Caernarfon, LL55 3HE10, Bryn Eglwys, Caernarfon, LL55 3HE
• Sold Nov 2024£364,950 | 4 Bed HouseTy Bryn, Caernarfon, LL55 3BSTy Bryn, Caernarfon, LL55 3BS
• Sold Sep 2024£202,500 | 3 Bed House11, Bryn Eglwys, Caernarfon, LL55 3HE11, Bryn Eglwys, Caernarfon, LL55 3HE
• Sold Sep 2024£527,000 | 5 Bed HouseGwernhelen, Caernarfon, LL55 3BNGwernhelen, Caernarfon, LL55 3BN
• Sold Jun 2024£250,000 | 4 Bed HouseLlygad Yr Haul, Caernarfon, LL55 3BWLlygad Yr Haul, Caernarfon, LL55 3BW
• Sold Nov 2021£170,000 | 3 Bed HouseSiop Gron, Caernarfon, LL55 3BSSiop Gron, Caernarfon, LL55 3BS
• Sold Nov 2021£233,500 | 4 Bed HouseGlyneuron, Caernarfon, LL55 3BWGlyneuron, Caernarfon, LL55 3BW
• Sold Aug 2021£65,000 | 2 Bed HouseBedivere, Caernarfon, LL55 3BNBedivere, Caernarfon, LL55 3BN
• Sold Dec 2020£250,000 | 3 Bed House6, Bryn Eglwys, Caernarfon, LL55 3HE6, Bryn Eglwys, Caernarfon, LL55 3HE
• Sold Mar 2020£236,500 | 3 Bed HouseLlys Yr Awel, Caernarfon, LL55 3BWLlys Yr Awel, Caernarfon, LL55 3BW
• Sold Jun 2018£205,000 | 4 Bed House3, Bryn Eglwys, Caernarfon, LL55 3HE3, Bryn Eglwys, Caernarfon, LL55 3HE
• Sold Mar 2018£145,000 | 3 Bed House18, Bryn Tirion, Caernarfon, LL55 3BP18, Bryn Tirion, Caernarfon, LL55 3BP
• Sold Dec 2016£232,500 | 3 Bed HouseCaerffynnon, Caernarfon, LL55 3BTCaerffynnon, Caernarfon, LL55 3BT
• Sold Oct 2016£140,000 | 3 Bed HouseGwel Y Mynydd, Caernarfon, LL55 3BSGwel Y Mynydd, Caernarfon, LL55 3BS
• Sold Oct 2015£222,000 | 3 Bed HouseLlain Y Werin, Caernarfon, LL55 3BLLlain Y Werin, Caernarfon, LL55 3BL
• Sold Feb 2015£90,000 | 3 Bed HouseCommercial Cottage, Caernarfon, LL55 3BSCommercial Cottage, Caernarfon, LL55 3BS
• Sold Mar 2012£115,000 | 2 Bed House1 Tai Newyddion, Caernarfon, LL55 3BW1 Tai Newyddion, Caernarfon, LL55 3BW
• Sold Jan 2011£240,000 | 5 Bed HouseLlys Arddun, Caernarfon, LL55 3BWLlys Arddun, Caernarfon, LL55 3BW
• Sold Aug 2010£80,000 | 2 Bed House2, Bryn Tirion, Caernarfon, LL55 3BP2, Bryn Tirion, Caernarfon, LL55 3BP
• Sold Jun 2010£180,000 | 4 Bed House13, Bryn Eglwys, Caernarfon, LL55 3HE13, Bryn Eglwys, Caernarfon, LL55 3HE

Our analysis of the public data ranks Trefalyn, Caernarfon as the largest and the 4th most expensive of the 181 addresses on Penisarwaun, Caernarfon, LL55.

Against the LL55 postcode district average, it is £298k more expensive than the typical property.

• Bangor (Gwynedd)

  |

  8.0 km away
• Llanfairpwll

  |

  8.1 km away
• Llanfairfechan

  |

  16.9 km away

Environment Agency data suggests this area has a Very Low risk of flooding.