Perthi, Caernarfon occupies a 482 m² plot as recorded by HM Land Registry.

Of the 23 other houses in this postcode, 20 have recorded plot sizes, and this one ranks as the 10th largest.

Perthi, Caernarfon has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 17 Aug 2011.

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

Perthi, Caernarfon last changed hands on 28th April 2000, selling for £67,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

• Sold Apr 2000£67,000

Land Registry records and our Estate Agent network show 39 sales of comparable properties within 3.0 kilometres of Perthi, Caernarfon since 2009.

Most recently, 20, Y Bryn, Caernarfon, LL55 2UN, a freehold house, sold at £299,950 on the 16th January 2026.

Read more about house prices in LL54.

• Sold Jan 2026£299,950 | 3 Bed House20, Y Bryn, Caernarfon, LL55 2UN20, Y Bryn, Caernarfon, LL55 2UN
• Sold Sep 2024£327,000 | 3 Bed House41, Y Bryn, Caernarfon, LL55 2UN41, Y Bryn, Caernarfon, LL55 2UN
• Sold Jul 2024£326,000 | 3 Bed HousePen Y Gamfa, Caernarfon, LL54 7EWPen Y Gamfa, Caernarfon, LL54 7EW
• Sold Jun 2024£240,000 | 3 Bed House8, Y Bryn, Caernarfon, LL55 2UN8, Y Bryn, Caernarfon, LL55 2UN
• Sold Apr 2024£235,000 | 3 Bed House40, Y Bryn, Caernarfon, LL55 2UN40, Y Bryn, Caernarfon, LL55 2UN
• Sold Feb 2024£300,000 | 3 Bed HouseSwn Y Nant, Caernarfon, LL54 7NTSwn Y Nant, Caernarfon, LL54 7NT
• Sold Jul 2023£138,000 | 3 Bed HouseMinawel, Caernarfon, LL54 7ETMinawel, Caernarfon, LL54 7ET
• Sold Feb 2021£129,000 | 3 Bed HouseLlwyn Onn, Caernarfon, LL54 7ETLlwyn Onn, Caernarfon, LL54 7ET
• Sold Dec 2019£250,000 | 3 Bed HousePen Y Braich, Caernarfon, LL54 7LBPen Y Braich, Caernarfon, LL54 7LB
• Sold Aug 2019£212,500 | 3 Bed HouseBryn Arlais, Caernarfon, LL54 7RABryn Arlais, Caernarfon, LL54 7RA
• Sold Jun 2019£116,000 | 3 Bed HouseGarreg Lwyd, Caernarfon, LL54 7NTGarreg Lwyd, Caernarfon, LL54 7NT
• Sold Sep 2017£275,000 | 3 Bed HouseTy Gwyn, Plas Glan Yr Afon, Caernarfon, LL55 2TGTy Gwyn, Plas Glan Yr Afon, Caernarfon, LL55 2TG
• Sold Mar 2017£105,000 | 3 Bed HouseHen Bost, Caernarfon, LL54 7ETHen Bost, Caernarfon, LL54 7ET
• Sold Mar 2016£285,000 | 4 Bed HouseTyn Twll, Caernarfon, LL54 7LBTyn Twll, Caernarfon, LL54 7LB
• Sold Feb 2016£120,000 | 3 Bed HouseTanffynnon, Caernarfon, LL54 7NGTanffynnon, Caernarfon, LL54 7NG
• Sold Apr 2015£127,738 | 3 Bed HouseBodhyfryd, Caernarfon, LL54 7LBBodhyfryd, Caernarfon, LL54 7LB
• Sold Aug 2014£190,000 | 3 Bed HouseTan Y Coed, Caernarfon, LL54 7NETan Y Coed, Caernarfon, LL54 7NE
• Sold May 2014£162,000 | 3 Bed HouseBryn Rhug, Caernarfon, LL54 7NTBryn Rhug, Caernarfon, LL54 7NT
• Sold Apr 2010£80,000 | 3 Bed HouseTy'N Ceunant, Caernarfon, LL54 7NTTy'N Ceunant, Caernarfon, LL54 7NT
• Sold Sep 2009£120,000 | 3 Bed HouseRhos Annedd, Caernarfon, LL54 7NTRhos Annedd, Caernarfon, LL54 7NT

Our analysis of the public data ranks Perthi, Caernarfon as the 204th largest and the 105th most expensive of the 260 addresses on Rhostryfan, Caernarfon, LL54.

Against the LL54 postcode district average, it is £61k more expensive than the typical property.

• Llanfairpwll

  |

  14.2 km away
• Bangor (Gwynedd)

  |

  15.8 km away
• Bodorgan

  |

  16.9 km away

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