15, Cil Isaf, Caernarfon has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 04 Dec 2024.

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

Since 2022 136 properties similar to 15, Cil Isaf, 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 Dec 2025£147,500 | 3 Bed House34, Margaret Street, Caernarfon, LL55 1NB34, Margaret Street, Caernarfon, LL55 1NB
• 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 Feb 2025£168,500 | 3 Bed House6, Edward Street, Caernarfon, LL55 1PH6, Edward Street, Caernarfon, LL55 1PH
• Sold Dec 2024£158,000 | 3 Bed House21, Edward Street, Caernarfon, LL55 1PH21, Edward Street, Caernarfon, LL55 1PH
• Sold Nov 2024£157,000 | 3 Bed House6, Margaret Street, Caernarfon, LL55 1NB6, Margaret Street, Caernarfon, LL55 1NB
• Sold Nov 2024£145,000 | 3 Bed House34, Eleanor Street, Caernarfon, LL55 1PG34, Eleanor Street, Caernarfon, LL55 1PG
• Sold Sep 2024£167,500 | 3 Bed House7, Eleanor Street, Caernarfon, LL55 1PG7, Eleanor Street, Caernarfon, LL55 1PG
• Sold Sep 2024£167,500 | 3 Bed House41, Victoria Street, Caernarfon, LL55 1PN41, Victoria Street, Caernarfon, LL55 1PN
• Sold Sep 2024£155,000 | 3 Bed House19, Edward Street, Caernarfon, LL55 1PH19, Edward Street, Caernarfon, LL55 1PH
• Sold Aug 2024£147,000 | 3 Bed House38, Margaret Street, Caernarfon, LL55 1NB38, Margaret Street, Caernarfon, LL55 1NB
• Sold Aug 2024£140,000 | 3 Bed House14, Victoria Street, Caernarfon, LL55 1PN14, Victoria Street, Caernarfon, LL55 1PN
• Sold Jun 2024£132,500 | 3 Bed House15, Margaret Street, Caernarfon, LL55 1NB15, Margaret Street, Caernarfon, LL55 1NB
• 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£106,000 | 3 Bed House8, Margaret Street, Caernarfon, LL55 1NB8, Margaret Street, Caernarfon, LL55 1NB
• Sold Mar 2023£125,000 | 3 Bed House9, Margaret Street, Caernarfon, LL55 1NB9, Margaret Street, Caernarfon, LL55 1NB
• Sold Feb 2023£125,000 | 3 Bed House35, Victoria Street, Caernarfon, LL55 1PN35, Victoria Street, Caernarfon, LL55 1PN
• Sold Apr 2022£148,000 | 3 Bed House17, Margaret Street, Caernarfon, LL55 1NB17, Margaret Street, Caernarfon, LL55 1NB

Of the 18 addresses on Cil Isaf, Caernarfon, LL55, 15, Cil Isaf, Caernarfon comes out as the 13th largest and the 13th most expensive in our analysis of the public data.

It is also £66k less expensive than the average property across the LL55 district.

• Llanfairpwll

  |

  9.8 km away
• Bangor (Gwynedd)

  |

  12.5 km away
• Bodorgan

  |

  12.6 km away

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