PollCheck projects Reform UK to gain more than 1,300 council seats on Thursday, taking its total from a base of 3 to 2,342 councillors 1. The Green Party projects to gain 555 seats to reach 696. The redistribution extends the picture from the three rural counties first projected by PollCheck in mid-April and the metropolitan boroughs added a fortnight later to a national reordering of English local government.
YouGov's West Midlands MRP, with fieldwork to 27 April on more than 2,000 respondents, projects Reform leading in 11 of 13 councils. Welsh Labour holds nothing in the West Midlands (Wales is a separate count); the English Labour Party retains only Birmingham and Coventry, with both contests projected within five points across Reform, Labour and the Greens. Labour's vote drops by more than 20 points in 10 of the 13 authorities: Birmingham minus 30, Tamworth minus 30, Sandwell minus 32 2. The Conservatives lose 24 to 31 points across the same map. Wolverhampton, Walsall and Sandwell are not the rural Leave-voting territory Reform polled best in a year ago; they are the post-industrial Labour heartland.
In London the picture inverts. YouGov's London MRP (n=4,548) puts the Greens in the lead in 4 boroughs, the first time the party has been projected to control any London council, and second to Labour in another nine wards across Hackney, Lambeth, Lewisham, Haringey, Brent and Ealing 3. Sixteen of the 32 London boroughs sit within five points between first and second place, which means a Friday recount in half the capital. Reform leads three boroughs in outer London.
Wales runs the same five-party fragmentation through different arithmetic. Wales projects 96 Senedd seats from 16 six-member constituencies under closed-list PR; Plaid Cymru's 33% becomes 43 seats and Reform's 29% becomes 34. England projects 5,000+ council seats from ward-level FPTP; Reform's 25% national share becomes 2,342 council seats and The Greens' 15% becomes 696. The same five-party fragmentation produces near-linear proportionality on the Welsh side of the Severn and county-level dominance on the English side. England, Scotland and Wales will count the same fragmentation through three different formulae overnight.
