5, Trefonwys, Bangor occupies a 726 m² plot as recorded by HM Land Registry.

Of the 33 other houses in this postcode, 31 have recorded plot sizes, and this one ranks as the 14th largest.

5, Trefonwys, Bangor has an Energy Performance Rating (EPC) of D. This is based on the most recent assessment, dated 18 Nov 2021.

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

5, Trefonwys, Bangor last changed hands on 10th December 2021, selling for £330,000. The transaction was logged as a freehold house by HM Land Registry.

That is its only recorded sale since 1995.

The market for similar properties has dropped by 13.6% since December 2021.

• Sold Dec 2021£330,000

Land Registry records and our Estate Agent network show 36 sales of comparable properties within 620 metres of 5, Trefonwys, Bangor since 2013.

Most recently, 3, Lon Y Bryn, Bangor, LL57 2LH, a freehold house, sold at £410,000 on the 15th August 2025.

Read more about house prices in LL57.

• Sold Aug 2025£410,000 | 4 Bed House3, Lon Y Bryn, Bangor, LL57 2LH3, Lon Y Bryn, Bangor, LL57 2LH
• Sold Mar 2025£410,000 | 4 Bed House36, Maes Berea, Bangor, LL57 4TQ36, Maes Berea, Bangor, LL57 4TQ
• Sold Jan 2025£299,500 | 4 Bed House22, Belmont Drive, Bangor, LL57 2HS22, Belmont Drive, Bangor, LL57 2HS
• Sold Dec 2024£385,000 | 4 Bed House6, Trefonwys, Bangor, LL57 2HU6, Trefonwys, Bangor, LL57 2HU
• Sold Jun 2024£308,000 | 4 Bed House128, Penchwintan Road, Bangor, LL57 2YG128, Penchwintan Road, Bangor, LL57 2YG
• Sold Jan 2024£417,500 | 4 Bed HouseHafod, Lon Y Ffrwd, Bangor, LL57 2LGHafod, Lon Y Ffrwd, Bangor, LL57 2LG
• Sold May 2023£330,000 | 4 Bed House9, Trefonwys, Bangor, LL57 2HU9, Trefonwys, Bangor, LL57 2HU
• Sold Nov 2022£282,500 | 4 Bed House48, Bryn Eithinog, Bangor, LL57 2LA48, Bryn Eithinog, Bangor, LL57 2LA
• Sold Sep 2022£385,000 | 4 Bed House11, Lon Y Bryn, Bangor, LL57 2LH11, Lon Y Bryn, Bangor, LL57 2LH
• Sold May 2021£273,000 | 4 Bed House46, Bryn Eithinog, Bangor, LL57 2LA46, Bryn Eithinog, Bangor, LL57 2LA
• Sold Feb 2021£278,000 | 4 Bed House26, Trefonwys, Bangor, LL57 2HU26, Trefonwys, Bangor, LL57 2HU
• Sold Jan 2021£257,500 | 4 Bed House9, Belmont Drive, Bangor, LL57 2HS9, Belmont Drive, Bangor, LL57 2HS
• Sold Oct 2018£260,000 | 4 Bed House32, Trefonwys, Bangor, LL57 2HU32, Trefonwys, Bangor, LL57 2HU
• Sold Apr 2018£289,950 | 4 Bed House17, Ffriddoedd Road, Bangor, LL57 2TW17, Ffriddoedd Road, Bangor, LL57 2TW
• Sold Nov 2017£285,000 | 4 Bed House24, Lon Y Bryn, Bangor, LL57 2LH24, Lon Y Bryn, Bangor, LL57 2LH
• Sold May 2017£204,000 | 4 Bed House12, Bryn Eithinog, Bangor, LL57 2LA12, Bryn Eithinog, Bangor, LL57 2LA
• Sold Apr 2017£190,000 | 4 Bed House13, Bryn Eithinog, Bangor, LL57 2LA13, Bryn Eithinog, Bangor, LL57 2LA
• Sold Jul 2015£280,000 | 4 Bed House27, Trefonwys, Bangor, LL57 2HU27, Trefonwys, Bangor, LL57 2HU
• Sold Aug 2014£210,000 | 4 Bed House13, Lon Y Meillion, Bangor, LL57 2LE13, Lon Y Meillion, Bangor, LL57 2LE
• Sold Jan 2013£230,000 | 4 Bed House2, Trefonwys, Bangor, LL57 2HU2, Trefonwys, Bangor, LL57 2HU

Our analysis of the public data ranks 5, Trefonwys, Bangor as the 17th largest and the 14th most expensive of the 33 addresses on Trefonwys, Bangor, LL57.

Against the LL57 postcode district average, it is £148k more expensive than the typical property.

• Bangor (Gwynedd)

  |

  900 m away
• Llanfairpwll

  |

  4.0 km away
• Llanfairfechan

  |

  11.7 km away

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