Islwyn, Caernarfon occupies a 145 m² plot as recorded by HM Land Registry.

Of the 16 other houses in this postcode, 13 have recorded plot sizes, and this one ranks as the 9th largest.

Islwyn, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 31 Aug 2022.

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

Islwyn, Caernarfon last changed hands on 8th December 2021, selling for £155,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has risen by 47.4% since December 2021.

• Sold Dec 2021£155,000
• Sold Dec 2006£105,000

Land Registry records and our Estate Agent network show 63 sales of comparable properties within 2.6 kilometres of Islwyn, Caernarfon since 2007.

Most recently, 6, Bala Deulyn Terrace, Caernarfon, LL54 6BL, a freehold house, sold at £187,500 on the 13th March 2026.

Read more about house prices in LL54.

• Sold Mar 2026£187,500 | 3 Bed House6, Bala Deulyn Terrace, Caernarfon, LL54 6BL6, Bala Deulyn Terrace, Caernarfon, LL54 6BL
• Sold Jul 2025£160,000 | 3 Bed House25, Nantlle Road, Caernarfon, LL54 6AE25, Nantlle Road, Caernarfon, LL54 6AE
• Sold Jan 2025£180,000 | 3 Bed House6 Rathbone Terrace, Caernarfon, LL54 7TG6 Rathbone Terrace, Caernarfon, LL54 7TG
• Sold Aug 2024£150,000 | 3 Bed House6, Bryncelyn, Caernarfon, LL54 6AB6, Bryncelyn, Caernarfon, LL54 6AB
• Sold Jun 2023£210,000 | 3 Bed House14, Rhiwlas Road, Caernarfon, LL54 6HU14, Rhiwlas Road, Caernarfon, LL54 6HU
• Sold Nov 2022£177,500 | 3 Bed HouseLlifon View, Caernarfon, LL54 7RLLlifon View, Caernarfon, LL54 7RL
• Sold Oct 2022£165,000 | 3 Bed HouseBod Elwy, Caernarfon, LL54 7ADBod Elwy, Caernarfon, LL54 7AD
• Sold Sep 2022£156,000 | 3 Bed House24, Coed Madog Road, Caernarfon, LL54 6HR24, Coed Madog Road, Caernarfon, LL54 6HR
• Sold Jan 2022£180,000 | 3 Bed House26, Maes Hyfryd, Caernarfon, LL54 7RS26, Maes Hyfryd, Caernarfon, LL54 7RS
• Sold Dec 2021£97,000 | 3 Bed House26, Coed Madog Road, Caernarfon, LL54 6HR26, Coed Madog Road, Caernarfon, LL54 6HR
• Sold Oct 2021£90,000 | 3 Bed House50, Bryncelyn, Caernarfon, LL54 6AB50, Bryncelyn, Caernarfon, LL54 6AB
• Sold Aug 2019£133,000 | 3 Bed HouseBronant, Caernarfon, LL54 7ABBronant, Caernarfon, LL54 7AB
• Sold Feb 2018£145,000 | 3 Bed HouseBryn Ffynnon, Caernarfon, LL54 7SHBryn Ffynnon, Caernarfon, LL54 7SH
• Sold Sep 2017£124,000 | 3 Bed House1 Pisgah Terrace, Caernarfon, LL54 7RL1 Pisgah Terrace, Caernarfon, LL54 7RL
• Sold Apr 2017£125,000 | 3 Bed House3 Pisgah Terrace, Caernarfon, LL54 7RL3 Pisgah Terrace, Caernarfon, LL54 7RL
• Sold Jul 2015£105,000 | 3 Bed HouseLondon House, Caernarfon, LL54 7RLLondon House, Caernarfon, LL54 7RL
• Sold Sep 2014£104,500 | 3 Bed HouseLlys Brython, Caernarfon, LL54 7ABLlys Brython, Caernarfon, LL54 7AB
• Sold Mar 2014£117,000 | 3 Bed HouseAngorfa, Caernarfon, LL54 7RWAngorfa, Caernarfon, LL54 7RW
• Sold Jun 2007£75,000 | 3 Bed HouseBryn Pisgah, Caernarfon, LL54 7AABryn Pisgah, Caernarfon, LL54 7AA
• Sold Mar 2007£175,000 | 3 Bed HouseBryn Gwern, Caernarfon, LL54 7ABBryn Gwern, Caernarfon, LL54 7AB

Our analysis of the public data ranks Islwyn, Caernarfon as the 83rd largest and the 125th most expensive of the 207 addresses on Carmel, Caernarfon, LL54.

Against the LL54 postcode district average, it is £48k less expensive than the typical property.

• Llanfairpwll

  |

  16.7 km away
• Criccieth

  |

  17.2 km away
• Porthmadog

  |

  17.5 km away

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