Tyddyn Heilyn, Bangor has an Energy Performance Rating (EPC) of F. This is based on the most recent assessment, dated 28 Sep 2015.

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

Land Registry records and our Estate Agent network show 19 sales of comparable properties within 2.5 kilometres of Tyddyn Heilyn, Bangor since 2009.

Most recently, 33, Bryn Adda, Bangor, LL57 2LJ, a freehold house, sold at £570,000 on the 1st December 2025.

Read more about house prices in LL57.

• Sold Dec 2025£570,000 | 5 Bed House33, Bryn Adda, Bangor, LL57 2LJ33, Bryn Adda, Bangor, LL57 2LJ
• Sold Aug 2025£432,000 | 5 Bed HouseLodge, Bangor, LL57 4UYLodge, Bangor, LL57 4UY
• Sold Aug 2025£590,000 | 5 Bed House28, Bryn Adda, Bangor, LL57 2LJ28, Bryn Adda, Bangor, LL57 2LJ
• Sold Jan 2024£480,000 | 5 Bed HouseY Dderwen, Bangor, LL57 4EGY Dderwen, Bangor, LL57 4EG
• Sold Apr 2023£425,000 | 5 Bed House8, Bryn Adda, Bangor, LL57 2LJ8, Bryn Adda, Bangor, LL57 2LJ
• Sold Nov 2022£490,000 | 5 Bed House1, Bryn Coed, Bangor, LL57 2BF1, Bryn Coed, Bangor, LL57 2BF
• Sold Aug 2022£515,000 | 5 Bed HouseTyn Pwll, Bangor, LL57 4DUTyn Pwll, Bangor, LL57 4DU
• Sold Apr 2021£300,000 | 5 Bed HouseTyddyn Hir, Bangor, LL57 4DUTyddyn Hir, Bangor, LL57 4DU
• Sold Sep 2020£425,000 | 5 Bed House14, Bryn Adda, Bangor, LL57 2LJ14, Bryn Adda, Bangor, LL57 2LJ
• Sold Aug 2020£395,000 | 5 Bed HousePenhower Newydd, Bangor, LL57 4DTPenhower Newydd, Bangor, LL57 4DT
• Sold Aug 2019£360,000 | 5 Bed House21, Llys Adda, Bangor, LL57 2AW21, Llys Adda, Bangor, LL57 2AW
• Sold Aug 2018£330,000 | 5 Bed House27, Bryn Adda, Bangor, LL57 2LJ27, Bryn Adda, Bangor, LL57 2LJ
• Sold Jul 2018£320,000 | 5 Bed House25, Bryn Adda, Bangor, LL57 2LJ25, Bryn Adda, Bangor, LL57 2LJ
• Sold Mar 2016£331,000 | 5 Bed House18, Llys Adda, Bangor, LL57 2AW18, Llys Adda, Bangor, LL57 2AW
• Sold Aug 2012£377,500 | 5 Bed HouseCaerafallon, Bangor, LL57 4YACaerafallon, Bangor, LL57 4YA
• Sold Aug 2011£442,000 | 5 Bed House7, Bryn Adda, Bangor, LL57 2LJ7, Bryn Adda, Bangor, LL57 2LJ
• Sold May 2010£370,000 | 5 Bed House3, Dol Hyfryd, Bangor, LL57 2JZ3, Dol Hyfryd, Bangor, LL57 2JZ
• Sold Apr 2010£150,000 | 5 Bed House32, Bryn Adda, Bangor, LL57 2LJ32, Bryn Adda, Bangor, LL57 2LJ
• Sold Nov 2009£360,000 | 5 Bed House18, Bryn Adda, Bangor, LL57 2LJ18, Bryn Adda, Bangor, LL57 2LJ

Our analysis of the public data ranks Tyddyn Heilyn, Bangor as the 9th largest and the 4th most expensive of the 64 addresses on Caerhun, Bangor, LL57.

Against the LL57 postcode district average, it is £324k more expensive than the typical property.

• Bangor (Gwynedd)

  |

  3.0 km away
• Llanfairpwll

  |

  5.8 km away
• Llanfairfechan

  |

  12.2 km away

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