Tan Y Ffynnon, Caernarfon occupies a 3,845 m² plot as recorded by HM Land Registry.

Of the 15 other houses in this postcode, 13 have recorded plot sizes, and this one ranks as the largest.

Tan Y Ffynnon, Caernarfon has an Energy Performance Rating (EPC) of G. This is based on the most recent assessment, dated 23 Oct 2014.

The property is not connected to mains gas and has fully double glazed windows. It is heated using electric storage heaters.

Tan Y Ffynnon, Caernarfon last changed hands on 5th March 2021, selling for £162,000. 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 39.7% since March 2021.

Land Registry records and our Estate Agent network show 30 sales of comparable properties within 2.9 kilometres of Tan Y Ffynnon, Caernarfon since 2014.

Most recently, Talafon, Allt Goch, Caernarfon, LL55 4DW, a freehold house, sold at £175,000 on the 16th January 2026.

Read more about house prices in LL55.

• Sold Jan 2026£175,000 | 2 Bed HouseTalafon, Allt Goch, Caernarfon, LL55 4DWTalafon, Allt Goch, Caernarfon, LL55 4DW
• Sold Jul 2025£185,000 | 3 Bed House4 Craig Y Don, Caernarfon, LL55 4DP4 Craig Y Don, Caernarfon, LL55 4DP
• Sold Feb 2024£175,000 | 2 Bed House4, Bron Y Waun, Bangor, LL57 4EX4, Bron Y Waun, Bangor, LL57 4EX
• Sold Dec 2023£175,000 | 2 Bed House5-6 Tan Y Foel, Caernarfon, LL55 3EF5-6 Tan Y Foel, Caernarfon, LL55 3EF
• Sold Sep 2023£81,000 | 3 Bed HouseTan Y Caerau, Caernarfon, LL55 3EBTan Y Caerau, Caernarfon, LL55 3EB
• Sold May 2023£195,000 | 2 Bed House2, Hafod Lon, Bangor, LL57 4GD2, Hafod Lon, Bangor, LL57 4GD
• Sold Apr 2023£140,000 | 3 Bed House1 Tai Ffynnon, Caernarfon, LL55 3DB1 Tai Ffynnon, Caernarfon, LL55 3DB
• Sold Dec 2022£235,000 | 2 Bed HouseGoat Cottage, Caernarfon, LL55 4ELGoat Cottage, Caernarfon, LL55 4EL
• Sold May 2022£140,500 | 2 Bed HouseBron Eryri, Caernarfon, LL55 3NRBron Eryri, Caernarfon, LL55 3NR
• Sold Feb 2022£190,050 | 3 Bed House3 Bron Y Waun Terrace, Caernarfon, LL55 3BS3 Bron Y Waun Terrace, Caernarfon, LL55 3BS
• Sold Feb 2022£190,000 | 3 Bed House5, Newton Street, Caernarfon, LL55 4HN5, Newton Street, Caernarfon, LL55 4HN
• Sold Nov 2021£193,500 | 3 Bed House6, Charlotte Street, Caernarfon, LL55 4ER6, Charlotte Street, Caernarfon, LL55 4ER
• Sold Sep 2020£138,000 | 2 Bed HouseTan Yr Henffordd, Caernarfon, LL55 3EBTan Yr Henffordd, Caernarfon, LL55 3EB
• Sold Feb 2020£136,000 | 2 Bed House20, Bron Y Waun, Bangor, LL57 4EX20, Bron Y Waun, Bangor, LL57 4EX
• Sold Dec 2019£172,000 | 3 Bed HouseGors Bach, Caernarfon, LL55 3NRGors Bach, Caernarfon, LL55 3NR
• Sold Sep 2019£154,000 | 3 Bed House2 Tai Ffynnon, Caernarfon, LL55 3DB2 Tai Ffynnon, Caernarfon, LL55 3DB
• Sold May 2017£91,000 | 2 Bed House8 Dinorwic Terrace, Caernarfon, LL55 3DN8 Dinorwic Terrace, Caernarfon, LL55 3DN
• Sold Mar 2016£109,000 | 3 Bed House1 Bron Y Waun Terrace, Caernarfon, LL55 3BS1 Bron Y Waun Terrace, Caernarfon, LL55 3BS
• Sold Oct 2015£130,000 | 2 Bed HouseHaulfryn, Caernarfon, LL55 3NRHaulfryn, Caernarfon, LL55 3NR
• Sold Mar 2014£144,500 | 3 Bed HouseTy Hen, Caernarfon, LL55 3DBTy Hen, Caernarfon, LL55 3DB

Our analysis of the public data ranks Tan Y Ffynnon, Caernarfon as the 136th largest and the 112th most expensive of the 139 addresses on Deiniolen, Caernarfon, LL55.

Against the LL55 postcode district average, it is £30k less expensive than the typical property.

• Bangor (Gwynedd)

  |

  8.2 km away
• Llanfairpwll

  |

  9.7 km away
• Llanfairfechan

  |

  15.6 km away

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