20, Llys Adda, Bangor occupies a 678 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 largest.

20, Llys Adda, Bangor has an Energy Performance Rating (EPC) of B. This is based on the most recent assessment, dated 25 Feb 2014.

The property is connected to mains gas and has high performance glazing. It is heated using a boiler and radiators (mains gas).

20, Llys Adda, Bangor last changed hands on 29th June 2018, selling for £362,500. 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 17.7% since June 2018.

• Sold Jun 2018£362,500
• Sold May 2016£335,000

Land Registry records and our Estate Agent network show 31 sales of comparable properties within 1.0 kilometres of 20, Llys Adda, Bangor since 2009.

Most recently, 3, Lon Y Ffrwd, Bangor, LL57 2LG, a freehold house, sold at £425,000 on the 28th November 2025.

Read more about house prices in LL57.

• Sold Nov 2025£425,000 | 4 Bed House3, Lon Y Ffrwd, Bangor, LL57 2LG3, Lon Y Ffrwd, Bangor, LL57 2LG
• Sold Aug 2024£400,000 | 4 Bed House16, Llys Adda, Bangor, LL57 2AW16, Llys Adda, Bangor, LL57 2AW
• 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 Nov 2022£452,000 | 5 Bed House22, Bryn Adda, Bangor, LL57 2LJ22, Bryn Adda, Bangor, LL57 2LJ
• 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 Aug 2019£360,000 | 5 Bed House21, Llys Adda, Bangor, LL57 2AW21, Llys Adda, Bangor, LL57 2AW
• 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 Dec 2016£326,000 | 4 Bed House8, Llys Adda, Bangor, LL57 2AW8, Llys Adda, Bangor, LL57 2AW
• Sold Mar 2016£331,000 | 5 Bed House18, Llys Adda, Bangor, LL57 2AW18, Llys Adda, Bangor, LL57 2AW
• Sold Mar 2016£317,500 | 4 Bed House17, Llys Adda, Bangor, LL57 2AW17, Llys Adda, Bangor, LL57 2AW
• Sold Sep 2015£335,000 | 5 Bed House3, Bryn Adda, Bangor, LL57 2LJ3, 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 20, Llys Adda, Bangor as the 4th largest and the 2nd most expensive of the 54 addresses on Llys Adda, Bangor, LL57.

Against the LL57 postcode district average, it is £269k 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.