Caer Onnen, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 15 Oct 2021.

The property is not connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (oil).

According to the Land Registry and our network of Estate Agents, there have been 92 sales of properties similar to Caer Onnen, Caernarfon within a radius of 3.2 kilometres since 2014.

The most recent example is 5, Penrallt, Caernarfon, LL54 5UW, a freehold house which sold for £168,000 on the 17th October 2025.

Read more about house prices in LL54.

• Sold Oct 2025£168,000 | 3 Bed House5, Penrallt, Caernarfon, LL54 5UW5, Penrallt, Caernarfon, LL54 5UW
• Sold Apr 2025£225,000 | 3 Bed House5, Gwel Y Foel, Caernarfon, LL54 7YQ5, Gwel Y Foel, Caernarfon, LL54 7YQ
• Sold Apr 2025£204,000 | 3 Bed HouseGlyn Garth, Caernarfon, LL54 5UEGlyn Garth, Caernarfon, LL54 5UE
• Sold Jan 2025£207,500 | 3 Bed House24, Dol Beuno, Caernarfon, LL55 2UE24, Dol Beuno, Caernarfon, LL55 2UE
• Sold Dec 2024£165,000 | 3 Bed House6 Tanycefn Terrace, Caernarfon, LL54 7YB6 Tanycefn Terrace, Caernarfon, LL54 7YB
• Sold Aug 2024£181,000 | 3 Bed House2 Ty Gwyn, Caernarfon, LL54 7NN2 Ty Gwyn, Caernarfon, LL54 7NN
• Sold May 2024£225,000 | 3 Bed House10, Dinas Cottages, Caernarfon, LL54 5UA10, Dinas Cottages, Caernarfon, LL54 5UA
• Sold Apr 2024£185,000 | 3 Bed HouseEryl, Caernarfon, LL54 7YNEryl, Caernarfon, LL54 7YN
• Sold Feb 2023£239,000 | 3 Bed HouseMin Awel, Caernarfon, LL54 7NNMin Awel, Caernarfon, LL54 7NN
• Sold Dec 2022£220,000 | 3 Bed HouseDwyryd, Caernarfon, LL54 5UEDwyryd, Caernarfon, LL54 5UE
• Sold Jul 2022£165,000 | 3 Bed HouseDulas, Caernarfon, LL54 5UEDulas, Caernarfon, LL54 5UE
• Sold Jan 2022£190,000 | 3 Bed House7, Glanrhyd, Caernarfon, LL54 7YP7, Glanrhyd, Caernarfon, LL54 7YP
• Sold Jun 2021£170,000 | 3 Bed HousePreswylfa, Caernarfon, LL54 5UEPreswylfa, Caernarfon, LL54 5UE
• Sold Feb 2021£155,000 | 3 Bed House3, Dol Beuno, Caernarfon, LL55 2UE3, Dol Beuno, Caernarfon, LL55 2UE
• Sold Jan 2021£225,000 | 3 Bed House6, Glanrhyd, Caernarfon, LL54 7YP6, Glanrhyd, Caernarfon, LL54 7YP
• Sold Nov 2017£103,000 | 3 Bed House29, Dol Beuno, Caernarfon, LL55 2UE29, Dol Beuno, Caernarfon, LL55 2UE
• Sold Apr 2017£157,500 | 3 Bed HouseNeuadd Wen, Caernarfon, LL54 7YNNeuadd Wen, Caernarfon, LL54 7YN
• Sold Feb 2017£218,000 | 3 Bed HouseStation View, Caernarfon, LL54 5UBStation View, Caernarfon, LL54 5UB
• Sold Jun 2016£124,000 | 3 Bed HouseCartref, Caernarfon, LL54 5UECartref, Caernarfon, LL54 5UE
• Sold Aug 2014£180,000 | 3 Bed HouseTryfan, Caernarfon, LL54 5UETryfan, Caernarfon, LL54 5UE

Dinas, Caernarfon, LL54 has a total of 74 addresses. According to our analysis of all the public data, Caer Onnen, Caernarfon is the 63rd largest and the 69th most expensive property on the street.

When compared to the postcode district it is £19k less expensive than the average property in LL54.

• Llanfairpwll

  |

  13.9 km away
• Bodorgan

  |

  14.8 km away
• Bangor (Gwynedd)

  |

  16.3 km away

According to data from the Environment Agency, the flood risk in this area is considered to be Very Low.