CEREDIGIOn will see the return of a south constituency boundary last used more than two decades ago after initial proposals for plans to cut the number of Welsh MPs were revealed.

Under the plans the number of Welsh seats in the House of Commons would fall from 40 to 32, with Westminster constituency sizes increasing and elector numbers levelling out.

The new constituencies have been drawn up by the independent Boundary Commission for Wales, which said the move “represents the most significant change to Wales’s constituencies in a century.”

Under the proposals unveiled this week, Ceredigion would annex part of north Pembrokeshire and be renamed Ceredigion Preseli.

Ceredigion and Pembroke North existed as a constituency until 1997.

Current wards in Pembrokeshire that would move into the new look constituency are Cilgerran, Clydau, Crymych, Dinas Cross, Fishguard North East, Fishguard North West, Goodwick, Letterston, Llanrhian, Newport, St David’s, St Dogmaels, Scleddau, and Solva.

The new proposals follow a previous attempt to cut Wales’ parliamentary seats from 40 to 29, which would have seen en enlarged Ceredigion constituency taking in not only parts of north Pembrokeshire but also Powys.

Those proposals were abandoned three years in favour of a new plan retaining 32 seats.

The new Ceredigion Preseli constituency would have 76,269 electors,.

Boundary Commission for Wales said that the changes in Ceredigion were needed as “the existing constituency falls significantly below the statutory electorate range.”

“The commission considered several options, and proposes to combine the existing Ceredigion constituency with the northern electoral wards of the existing Preseli Pembrokeshire constituency,” a report into the proposals outlines. “The proposed combined areas are of similar character, sharing similar rural and coastal characteristics, and the A487 provides a good road link between them.

“The existing constituency of Ceredigion is included wholly within the proposed constituency, and is combined with electoral wards from the Pembrokeshire principal council area, which are to the north of the Preseli mountains.

“The commission considers that the constituency name should reflect both areas within the proposed constituency, and has therefore proposed the name of Ceredigion Preseli.”

Also under the plans, the Montgomeryshire constituency which is home to Machynlleth and Llanidloes will be enlarged to take on parts of Clwyd South to become Montgomeryshire and Glynd?r.

The plans will now be the subject of an eight-week consultation.