Bangor and Anglesey could form a new constituency called ‘Ynys Mon a Fangor‘, under the new proposals to ensure that each constituency has an electorate within the range of 71,031 to 78,507.

Under the new proposals, the number of Welsh seats in the House of Commons would fall from 40 to 29, with the average size of each constituency increasing by about 20,000 voters. Constituency boundaries are proposed to change across the UK, reducing the size of the Commons from 650 to 600 seats. Wales will see the largest proportional cut among the four nations.

Another significant change is that Caernarfon would be included in a new Gwynedd constituency, rather than becoming part of a seat combining Bangor and Anglesey.

There will now be another two months of consultation before the final plans are published in September 2018. If the plans go ahead, it would be the biggest change to the electoral map of Wales since world war two.

The Boundary Commission said it had tried to maintain community links and easily identifiable boundaries as much as possible, and it did not take political considerations into account.

Plaid Cymru’s leader at Westminster, Liz Saville Roberts, said the party did not oppose a cut in MPs but claimed that “disproportionately focusing those cuts on Welsh constituencies will weaken Wales’s voice in Westminster and strengthen Westminster’s grip on our country”.

Despite a general consensus on the new plans, there is likely to be disagreement on Anglesey, which has been an island constituency for nearly 500 years, where there has previously been resistance to plans for change.

Bangor and Anglesey could form a new constituency called ‘Ynys Mon a Fangor‘

Bangor and Anglesey could form a new constituency called ‘Ynys Mon a Fangor‘, under new proposals which would also see Caernarfon move to a new ‘Gwynedd’ seat