21, Llys Adda, Bangor occupies a 506 m² plot as recorded by HM Land Registry.

Of the 42 other houses in this postcode, 32 have recorded plot sizes, and this one ranks as the 6th largest.

21, Llys Adda, Bangor has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 17 Mar 2016.

The property is not connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).

21, Llys Adda, Bangor last changed hands on 1st August 2019, selling for £360,000. The transaction was logged as a freehold house by HM Land Registry.

In total it has sold twice since 1995.

The market for similar properties has dropped by 13.2% since August 2019.

• Sold Aug 2019£360,000
• Sold Sep 2016£350,000

Land Registry records and our Estate Agent network show 33 sales of comparable properties within 1.0 kilometres of 21, Llys Adda, Bangor since 2009.

Most recently, Cae Ffos, Treborth Road, Bangor, LL57 2RJ, a freehold house, sold at £450,000 on the 19th September 2025.

Read more about house prices in LL57.

• Sold Sep 2025£450,000 | 5 Bed HouseCae Ffos, Treborth Road, Bangor, LL57 2RJCae Ffos, Treborth Road, Bangor, LL57 2RJ
• Sold May 2024£399,950 | 5 Bed House20, Coed Y Maes, Bangor, LL57 2EJ20, Coed Y Maes, Bangor, LL57 2EJ
• Sold Jan 2024£325,000 | 5 Bed HouseTair Ffynnon Isaf, Cyttir Lane, Bangor, LL57 4DATair Ffynnon Isaf, Cyttir Lane, Bangor, LL57 4DA
• Sold Apr 2023£425,000 | 5 Bed House8, Bryn Adda, Bangor, LL57 2LJ8, Bryn Adda, Bangor, LL57 2LJ
• Sold Nov 2022£452,000 | 5 Bed House22, Bryn Adda, Bangor, LL57 2LJ22, Bryn Adda, Bangor, LL57 2LJ
• Sold Jun 2021£350,000 | 5 Bed House14, Coed Y Maes, Bangor, LL57 2EJ14, Coed Y Maes, Bangor, LL57 2EJ
• Sold Mar 2021£365,000 | 5 Bed House30, Coed Y Maes, Bangor, LL57 2EJ30, Coed Y Maes, Bangor, LL57 2EJ
• Sold Jan 2021£370,000 | 5 Bed House21, Bryn Adda, Bangor, LL57 2LJ21, Bryn Adda, Bangor, LL57 2LJ
• Sold Nov 2020£315,000 | 5 Bed House23, Coed Y Maes, Bangor, LL57 2EJ23, Coed Y Maes, Bangor, LL57 2EJ
• Sold Nov 2020£400,000 | 5 Bed House4, Dol Hyfryd, Bangor, LL57 2JZ4, Dol Hyfryd, Bangor, LL57 2JZ
• Sold Sep 2020£425,000 | 5 Bed House14, Bryn Adda, Bangor, LL57 2LJ14, Bryn Adda, Bangor, LL57 2LJ
• Sold Aug 2019£412,500 | 5 Bed House5, Lon Y Bryn, Bangor, LL57 2LH5, Lon Y Bryn, Bangor, LL57 2LH
• Sold May 2019£330,000 | 5 Bed House26, Llys Adda, Bangor, LL57 2AW26, Llys Adda, Bangor, LL57 2AW
• Sold Jul 2018£320,000 | 5 Bed House25, Bryn Adda, Bangor, LL57 2LJ25, Bryn Adda, Bangor, LL57 2LJ
• Sold Jun 2018£362,500 | 5 Bed House20, Llys Adda, Bangor, LL57 2AW20, Llys Adda, Bangor, LL57 2AW
• Sold Mar 2016£331,000 | 5 Bed House18, Llys Adda, Bangor, LL57 2AW18, Llys Adda, Bangor, LL57 2AW
• Sold Sep 2015£335,000 | 5 Bed House3, Bryn Adda, Bangor, LL57 2LJ3, Bryn Adda, Bangor, LL57 2LJ
• Sold Apr 2010£152,500 | 5 Bed House36, Bryn Adda, Bangor, LL57 2LJ36, Bryn Adda, Bangor, LL57 2LJ
• Sold Feb 2010£150,000 | 4 Bed House34, Bryn Adda, Bangor, LL57 2LJ34, Bryn Adda, Bangor, LL57 2LJ
• Sold Oct 2009£365,000 | 5 Bed House31, Bryn Adda, Bangor, LL57 2LJ31, Bryn Adda, Bangor, LL57 2LJ

Our analysis of the public data ranks 21, Llys Adda, Bangor as the largest and the 3rd most expensive of the 54 addresses on Llys Adda, Bangor, LL57.

Against the LL57 postcode district average, it is £234k more expensive than the typical property.

• Bangor (Gwynedd)

  |

  1.4 km away
• Llanfairpwll

  |

  3.9 km away
• Llanfairfechan

  |

  12.2 km away

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