HM Land Registry records the plot of land for 41, Mountain Street, Caernarfon as measuring 59 m².

That makes it the 4th largest plot in the postcode, where 22 of the 40 other houses have recorded plot data.

41, Mountain Street, Caernarfon has an Energy Performance Rating (EPC) of E. This is based on the most recent assessment, dated 23 Sep 2021.

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)).

Since 2014 145 properties similar to 41, Mountain Street, Caernarfon have sold within a radius of 520 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 20th February 2026, was 45, Eleanor Street, Caernarfon, LL55 1PG, a freehold house which sold for £162,000.

Read more about house prices in LL55.

• Sold Feb 2026£162,000 | 3 Bed House45, Eleanor Street, Caernarfon, LL55 1PG45, Eleanor Street, Caernarfon, LL55 1PG
• Sold Feb 2026£180,000 | 3 Bed House28, Victoria Street, Caernarfon, LL55 1PN28, Victoria Street, Caernarfon, LL55 1PN
• Sold Jun 2025£165,000 | 3 Bed House10, Eleanor Street, Caernarfon, LL55 1PG10, Eleanor Street, Caernarfon, LL55 1PG
• Sold Apr 2025£155,000 | 3 Bed House33, Victoria Street, Caernarfon, LL55 1PN33, Victoria Street, Caernarfon, LL55 1PN
• Sold Nov 2024£157,000 | 3 Bed House6, Margaret Street, Caernarfon, LL55 1NB6, Margaret Street, Caernarfon, LL55 1NB
• Sold Sep 2024£170,000 | 3 Bed House51, Mountain Street, Caernarfon, LL55 1PW51, Mountain Street, Caernarfon, LL55 1PW
• Sold Sep 2024£170,000 | 3 Bed House53, Mountain Street, Caernarfon, LL55 1PW53, Mountain Street, Caernarfon, LL55 1PW
• Sold Sep 2024£167,500 | 3 Bed House41, Victoria Street, Caernarfon, LL55 1PN41, Victoria Street, Caernarfon, LL55 1PN
• Sold Aug 2024£140,000 | 3 Bed House14, Victoria Street, Caernarfon, LL55 1PN14, Victoria Street, Caernarfon, LL55 1PN
• Sold Apr 2024£147,000 | 3 Bed House29, Victoria Street, Caernarfon, LL55 1PN29, Victoria Street, Caernarfon, LL55 1PN
• Sold Dec 2023£148,000 | 3 Bed House23, Victoria Street, Caernarfon, LL55 1PN23, Victoria Street, Caernarfon, LL55 1PN
• Sold Sep 2023£155,000 | 3 Bed House15, Eleanor Street, Caernarfon, LL55 1PG15, Eleanor Street, Caernarfon, LL55 1PG
• Sold Feb 2023£125,000 | 3 Bed House35, Victoria Street, Caernarfon, LL55 1PN35, Victoria Street, Caernarfon, LL55 1PN
• Sold Oct 2021£126,000 | 3 Bed House31, Margaret Street, Caernarfon, LL55 1NB31, Margaret Street, Caernarfon, LL55 1NB
• Sold Oct 2021£129,500 | 3 Bed House13, Mountain Street, Caernarfon, LL55 1PW13, Mountain Street, Caernarfon, LL55 1PW
• Sold Jan 2021£135,000 | 3 Bed House15, Mountain Street, Caernarfon, LL55 1PW15, Mountain Street, Caernarfon, LL55 1PW
• Sold Jan 2021£110,000 | 3 Bed House33, Mountain Street, Caernarfon, LL55 1PW33, Mountain Street, Caernarfon, LL55 1PW
• Sold May 2020£125,000 | 3 Bed House49, Mountain Street, Caernarfon, LL55 1PW49, Mountain Street, Caernarfon, LL55 1PW
• Sold Mar 2016£95,000 | 3 Bed House45, Mountain Street, Caernarfon, LL55 1PW45, Mountain Street, Caernarfon, LL55 1PW
• Sold Oct 2014£115,000 | 3 Bed House31, Mountain Street, Caernarfon, LL55 1PW31, Mountain Street, Caernarfon, LL55 1PW

Of the 40 addresses on Mountain Street, Caernarfon, LL55, 41, Mountain Street, Caernarfon comes out as the largest and the most expensive in our analysis of the public data.

It is also £73k less expensive than the average property across the LL55 district.

• Llanfairpwll

  |

  9.7 km away
• Bodorgan

  |

  12.2 km away
• Bangor (Gwynedd)

  |

  12.6 km away

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