18, Lon Ty Gwyn, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Dec 2015.

The property is connected to mains gas and has fully double glazed windows. It is heated using a boiler and radiators (mains gas).

Since 2007 566 properties have sold within 620 metres of 18, Lon Ty Gwyn, Caernarfon, per the Land Registry and our network of Estate Agents.

The latest, on the 12th December 2025, was 40, Gwel Y Llan, Caernarfon, LL55 2SJ, a freehold house which sold for £325,000.

Read more about house prices in LL55.

• Sold Dec 2025£325,000 | 3 Bed House40, Gwel Y Llan, Caernarfon, LL55 2SJ40, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Nov 2025£140,000 | 3 Bed House21, Lon Eilian, Caernarfon, LL55 2EG21, Lon Eilian, Caernarfon, LL55 2EG
• Sold Jun 2024£156,350 | 3 Bed House57, Lon Eilian, Caernarfon, LL55 2EG57, Lon Eilian, Caernarfon, LL55 2EG
• Sold Jun 2023£177,500 | 3 Bed House19, Lon Ty Gwyn, Caernarfon, LL55 2EH19, Lon Ty Gwyn, Caernarfon, LL55 2EH
• Sold Mar 2023£151,000 | 3 Bed House10, Lon Ty Gwyn, Caernarfon, LL55 2EH10, Lon Ty Gwyn, Caernarfon, LL55 2EH
• Sold Aug 2022£145,000 | 3 Bed House9, Lon Ty Gwyn, Caernarfon, LL55 2EH9, Lon Ty Gwyn, Caernarfon, LL55 2EH
• Sold Dec 2020£155,000 | 4 Bed House2, Ty Gwyn, Caernarfon, LL55 2EL2, Ty Gwyn, Caernarfon, LL55 2EL
• Sold Sep 2019£179,999 | 3 Bed House38, Gwel Y Llan, Caernarfon, LL55 2SJ38, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Dec 2015£90,000 | 3 Bed House6, Cil Coed, Caernarfon, LL55 2DP6, Cil Coed, Caernarfon, LL55 2DP
• Sold Feb 2015£88,000 | 3 Bed House49, Lon Eilian, Caernarfon, LL55 2EG49, Lon Eilian, Caernarfon, LL55 2EG
• Sold Jan 2015£80,000 | 3 Bed House7, Cil Coed, Caernarfon, LL55 2DP7, Cil Coed, Caernarfon, LL55 2DP
• Sold Aug 2014£104,000 | 3 Bed House8, Lon Ty Gwyn, Caernarfon, LL55 2EH8, Lon Ty Gwyn, Caernarfon, LL55 2EH
• Sold Mar 2012£96,000 | 3 Bed House6, Lon Helen, Caernarfon, LL55 2EW6, Lon Helen, Caernarfon, LL55 2EW
• Sold Nov 2011£108,000 | 3 Bed House2, Lon Ty Gwyn, Caernarfon, LL55 2EH2, Lon Ty Gwyn, Caernarfon, LL55 2EH
• Sold Nov 2011£93,000 | 3 Bed House53, Lon Eilian, Caernarfon, LL55 2EG53, Lon Eilian, Caernarfon, LL55 2EG
• Sold Oct 2010£89,950 | 3 Bed House16, Lon Cefn Du, Caernarfon, LL55 2EN16, Lon Cefn Du, Caernarfon, LL55 2EN
• Sold Jul 2010£120,000 | 3 Bed House41, Lon Eilian, Caernarfon, LL55 2EG41, Lon Eilian, Caernarfon, LL55 2EG
• Sold Sep 2008£57,000 | 2 Bed Flat7, Lon Helen, Caernarfon, LL55 2EW7, Lon Helen, Caernarfon, LL55 2EW
• Sold Aug 2007£118,000 | 4 Bed House17, Lon Helen, Caernarfon, LL55 2EW17, Lon Helen, Caernarfon, LL55 2EW
• Sold Mar 2007£60,000 | 2 Bed House6, Lon Ty Gwyn, Caernarfon, LL55 2EH6, Lon Ty Gwyn, Caernarfon, LL55 2EH

Of the 25 addresses on Lon Ty Gwyn, Caernarfon, LL55, 18, Lon Ty Gwyn, Caernarfon comes out as the 15th largest and the 24th most expensive in our analysis of the public data.

It is also £134k less expensive than the average property across the LL55 district.

• Llanfairpwll

  |

  9.9 km away
• Bangor (Gwynedd)

  |

  12.5 km away
• Bodorgan

  |

  12.9 km away

The flood risk here is rated Very Low, based on Environment Agency data.