27, Lon Helen, Caernarfon has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 04 Nov 2024.

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

Land Registry records and our Estate Agent network show 81 sales of comparable properties within 610 metres of 27, Lon Helen, Caernarfon since 2010.

Most recently, 47, Assheton Terrace, Caernarfon, LL55 2LD, a freehold house, sold at £146,250 on the 20th February 2026.

Read more about house prices in LL55.

• Sold Feb 2026£146,250 | 3 Bed House47, Assheton Terrace, Caernarfon, LL55 2LD47, Assheton Terrace, Caernarfon, LL55 2LD
• Sold Dec 2025£147,500 | 3 Bed House34, Margaret Street, Caernarfon, LL55 1NB34, Margaret Street, Caernarfon, LL55 1NB
• Sold Nov 2025£140,000 | 3 Bed House21, Lon Eilian, Caernarfon, LL55 2EG21, Lon Eilian, Caernarfon, LL55 2EG
• Sold Nov 2024£157,000 | 3 Bed House6, Margaret Street, Caernarfon, LL55 1NB6, Margaret Street, Caernarfon, LL55 1NB
• Sold Aug 2024£147,000 | 3 Bed House38, Margaret Street, Caernarfon, LL55 1NB38, Margaret Street, Caernarfon, LL55 1NB
• Sold Jun 2024£156,350 | 3 Bed House57, Lon Eilian, Caernarfon, LL55 2EG57, Lon Eilian, Caernarfon, LL55 2EG
• Sold Apr 2024£135,000 | 3 Bed House9, Beulah Square, Caernarfon, LL55 2LA9, Beulah Square, Caernarfon, LL55 2LA
• Sold Mar 2024£138,600 | 3 Bed House5, Assheton Terrace, Caernarfon, LL55 2LD5, Assheton Terrace, Caernarfon, LL55 2LD
• Sold Sep 2023£156,500 | 3 Bed House14, Llys Siabod, Caernarfon, LL55 2LT14, Llys Siabod, Caernarfon, LL55 2LT
• Sold Sep 2023£106,000 | 3 Bed House8, Margaret Street, Caernarfon, LL55 1NB8, Margaret Street, Caernarfon, LL55 1NB
• Sold Jun 2023£120,000 | 3 Bed House4, Beulah Square, Caernarfon, LL55 2LA4, Beulah Square, Caernarfon, LL55 2LA
• Sold Dec 2022£140,000 | 3 Bed House9, Llys Siabod, Caernarfon, LL55 2LT9, Llys Siabod, Caernarfon, LL55 2LT
• Sold Nov 2019£143,500 | 3 Bed House18, Lon Arfon, Caernarfon, LL55 2ER18, Lon Arfon, Caernarfon, LL55 2ER
• Sold Dec 2016£95,000 | 3 Bed House10, Cil Coed, Caernarfon, LL55 2DP10, Cil Coed, Caernarfon, LL55 2DP
• Sold Feb 2015£88,000 | 3 Bed House49, Lon Eilian, Caernarfon, LL55 2EG49, Lon Eilian, Caernarfon, LL55 2EG
• Sold Aug 2014£104,000 | 3 Bed House8, Lon Ty Gwyn, Caernarfon, LL55 2EH8, Lon Ty Gwyn, Caernarfon, LL55 2EH
• Sold Mar 2012£96,000 | 3 Bed House6, Lon Helen, Caernarfon, LL55 2EW6, Lon Helen, Caernarfon, LL55 2EW
• Sold Nov 2011£93,000 | 3 Bed House53, Lon Eilian, Caernarfon, LL55 2EG53, Lon Eilian, Caernarfon, LL55 2EG
• Sold Jul 2010£120,000 | 3 Bed House41, Lon Eilian, Caernarfon, LL55 2EG41, Lon Eilian, Caernarfon, LL55 2EG
• Sold May 2010£105,000 | 3 Bed House7, Lon Eilian, Caernarfon, LL55 2EG7, Lon Eilian, Caernarfon, LL55 2EG

Our analysis of the public data ranks 27, Lon Helen, Caernarfon as the 11th largest and the 11th most expensive of the 22 addresses on Lon Helen, Caernarfon, LL55.

Against the LL55 postcode district average, it is £73k less expensive than the typical property.

• Llanfairpwll

  |

  9.9 km away
• Bangor (Gwynedd)

  |

  12.6 km away
• Bodorgan

  |

  12.8 km away

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