18, Gallt Y Sil, Caernarfon has an Energy Performance Rating (EPC) of C. This is based on the most recent assessment, dated 26 May 2026.

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

Since 2017 86 properties similar to 18, Gallt Y Sil, Caernarfon have sold within a radius of 780 metres, per the Land Registry and our network of Estate Agents.

The latest, on the 5th March 2026, was 46, Ffordd Eryri, Caernarfon, LL55 2UR, a freehold house which sold for £210,000.

Read more about house prices in LL55.

• Sold Mar 2026£210,000 | 3 Bed House46, Ffordd Eryri, Caernarfon, LL55 2UR46, Ffordd Eryri, Caernarfon, LL55 2UR
• Sold Jan 2026£240,000 | 3 Bed House34, Caeau Bach, Caernarfon, LL55 2BZ34, Caeau Bach, Caernarfon, LL55 2BZ
• Sold Jan 2026£232,000 | 3 Bed House81, Ffordd Eryri, Caernarfon, LL55 2UR81, Ffordd Eryri, Caernarfon, LL55 2UR
• Sold Dec 2025£225,000 | 3 Bed House4, Cae'R Ysgol, Caernarfon, LL55 2LY4, Cae'R Ysgol, Caernarfon, LL55 2LY
• Sold Oct 2025£240,000 | 3 Bed House39, Gwel Y Llan, Caernarfon, LL55 2SJ39, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Aug 2025£235,000 | 3 Bed House5, Cae'R Ysgol, Caernarfon, LL55 2LY5, Cae'R Ysgol, Caernarfon, LL55 2LY
• Sold Dec 2024£235,000 | 3 Bed House2, Gwel Y Llan, Caernarfon, LL55 2SJ2, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Nov 2024£265,000 | 3 Bed House10, Bryn Eilian, Caernarfon, LL55 2RX10, Bryn Eilian, Caernarfon, LL55 2RX
• Sold Aug 2024£230,000 | 3 Bed House8, Moel Eilio, Caernarfon, LL55 2LZ8, Moel Eilio, Caernarfon, LL55 2LZ
• Sold Sep 2023£235,000 | 3 Bed House56, Gwel Y Llan, Caernarfon, LL55 2SJ56, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Oct 2022£190,000 | 3 Bed House50, Maes Meddyg, Caernarfon, LL55 2SF50, Maes Meddyg, Caernarfon, LL55 2SF
• Sold Oct 2022£245,000 | 3 Bed House7, Gwel Y Llan, Caernarfon, LL55 2SJ7, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Jul 2022£215,000 | 3 Bed House1, Gwel Y Llan, Caernarfon, LL55 2SJ1, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Apr 2022£240,000 | 3 Bed House6, Gwel Y Llan, Caernarfon, LL55 2SJ6, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Apr 2021£224,000 | 3 Bed House3, Gwel Y Llan, Caernarfon, LL55 2SJ3, Gwel Y Llan, Caernarfon, LL55 2SJ
• Sold Sep 2020£168,125 | 3 Bed House80, Ffordd Eryri, Caernarfon, LL55 2UR80, Ffordd Eryri, Caernarfon, LL55 2UR
• Sold Mar 2020£177,500 | 3 Bed House77, Ffordd Eryri, Caernarfon, LL55 2UR77, Ffordd Eryri, Caernarfon, LL55 2UR
• Sold Mar 2020£177,500 | 3 Bed House76, Ffordd Eryri, Caernarfon, LL55 2UR76, Ffordd Eryri, Caernarfon, LL55 2UR
• Sold Dec 2018£130,000 | 3 Bed House63, Ffordd Eryri, Caernarfon, LL55 2UR63, Ffordd Eryri, Caernarfon, LL55 2UR
• Sold May 2017£140,000 | 3 Bed House109, Gwel Y Llan, Caernarfon, LL55 2SQ109, Gwel Y Llan, Caernarfon, LL55 2SQ

Of the 47 addresses on Gallt Y Sil, Caernarfon, LL55, 18, Gallt Y Sil, Caernarfon comes out as the 4th largest and the 25th most expensive in our analysis of the public data.

It is also £17k less expensive than the average property across the LL55 district.

• Llanfairpwll

  |

  10.2 km away
• Bangor (Gwynedd)

  |

  12.8 km away
• Bodorgan

  |

  13.2 km away

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