Gwynlys, Caernarfon occupies a 97 m² plot as recorded by HM Land Registry.

Of the 31 other houses in this postcode, 10 have recorded plot sizes, and this one ranks as the 8th largest.

Gwynlys, Caernarfon has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 05 Sep 2018.

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

Gwynlys, Caernarfon last changed hands on 23rd November 2018, selling for £109,600. 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 73.3% since November 2018.

• Sold Nov 2018£109,600
• Sold Sep 1996£40,000

Land Registry records and our Estate Agent network show 55 sales of comparable properties within 8.6 kilometres of Gwynlys, Caernarfon since 2015.

Most recently, Tan Y Clawdd, Caernarfon, LL54 5DL, a freehold house, sold at £121,000 on the 22nd December 2025.

Read more about house prices in LL54.

• Sold Dec 2025£121,000 | 3 Bed HouseTan Y Clawdd, Caernarfon, LL54 5DLTan Y Clawdd, Caernarfon, LL54 5DL
• Sold Oct 2025£290,000 | 3 Bed House2 Brynffynnon, Caernarfon, LL54 5PP2 Brynffynnon, Caernarfon, LL54 5PP
• Sold Jun 2025£245,500 | 3 Bed House28, Stad Dolwar, Pwllheli, LL53 6UQ28, Stad Dolwar, Pwllheli, LL53 6UQ
• Sold Aug 2024£290,000 | 3 Bed HouseBryn Hyfryd, Pwllheli, LL53 8DZBryn Hyfryd, Pwllheli, LL53 8DZ
• Sold Sep 2023£215,000 | 3 Bed House2 Mount Pleasant, Pwllheli, LL53 6NU2 Mount Pleasant, Pwllheli, LL53 6NU
• Sold Jun 2023£391,000 | 3 Bed HousePentre Bach, Caernarfon, LL54 5BEPentre Bach, Caernarfon, LL54 5BE
• Sold Apr 2023£161,000 | 3 Bed HouseCompton House, Pwllheli, LL53 6NHCompton House, Pwllheli, LL53 6NH
• Sold Sep 2022£466,000 | 3 Bed HouseTyddyn Du, Caernarfon, LL54 5DLTyddyn Du, Caernarfon, LL54 5DL
• Sold Jun 2022£290,000 | 3 Bed HouseFron Oleu, Pwllheli, LL53 6DQFron Oleu, Pwllheli, LL53 6DQ
• Sold Feb 2020£170,000 | 3 Bed HouseSchool House, Pwllheli, LL53 6DQSchool House, Pwllheli, LL53 6DQ
• Sold Nov 2019£212,642 | 4 Bed HouseHafod Y Rhiw Fawr, Caernarfon, LL54 5DLHafod Y Rhiw Fawr, Caernarfon, LL54 5DL
• Sold Sep 2019£165,000 | 3 Bed House4, Llwyn Beuno, Caernarfon, LL54 5BW4, Llwyn Beuno, Caernarfon, LL54 5BW
• Sold Jul 2019£18,000 | 3 Bed HouseMaen Ceiri, Eifl Road, Caernarfon, LL54 5HGMaen Ceiri, Eifl Road, Caernarfon, LL54 5HG
• Sold Jan 2019£103,000 | 3 Bed HouseMoranedd, Caernarfon, LL54 5LBMoranedd, Caernarfon, LL54 5LB
• Sold Oct 2018£219,000 | 3 Bed HouseThe Coach House, Caernarfon, LL54 5NAThe Coach House, Caernarfon, LL54 5NA
• Sold Dec 2017£150,000 | 3 Bed House9 Mount Pleasant, Pwllheli, LL53 6NU9 Mount Pleasant, Pwllheli, LL53 6NU
• Sold Apr 2016£176,000 | 3 Bed House2 Elernion, Clynnog Road, Caernarfon, LL54 5AA2 Elernion, Clynnog Road, Caernarfon, LL54 5AA
• Sold Mar 2016£174,500 | 3 Bed HouseBwthyn Rhyd Y Berw, Caernarfon, LL54 5AEBwthyn Rhyd Y Berw, Caernarfon, LL54 5AE
• Sold Oct 2015£147,000 | 3 Bed House21, Stad Llwynaethnen, Caernarfon, LL54 5LE21, Stad Llwynaethnen, Caernarfon, LL54 5LE
• Sold Aug 2015£164,000 | 3 Bed HouseFrondeg, Caernarfon, LL54 5AEFrondeg, Caernarfon, LL54 5AE

Our analysis of the public data ranks Gwynlys, Caernarfon as the 55th largest and the 46th most expensive of the 150 addresses on Trefor, Caernarfon, LL54.

Against the LL54 postcode district average, it is £21k more expensive than the typical property.

• Abererch

  |

  11.3 km away
• Penychain

  |

  11.7 km away
• Pwllheli

  |

  12.0 km away

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