Seats changing hands in September 2016

Liberal Democrats GAIN Four Lanes on Cornwall from United Kingdom Independence Party

Conservatives GAIN Grangefield on Stockton on Tees from Labour

Liberal Democrats GAIN Mosborough on Sheffield from Labour

Liberal Democrats GAIN Tupton on North East Derbyshire from Labour

Liberal Democrats GAIN Plasnewydd on Cardiff from Labour

Labour GAIN Christchurch on Allerdale from Conservative

Plaid Cymru GAIN Cilycwm on Carmarthenshire from Independent

Labour GAIN Coatbridge North and Glenboig on North Lanarkshire from Scottish National Party

Labour GAIN Arley and Whitacre on North Warwickshire from Conservative

Liberal Democrats GAIN Hadleigh on Suffolk from Conservative

Liberal Democrats GAIN Teignmouth Central on Teignbridge from Conservative

Liberal Democrats GAIN Stow on Cotswold from Conservative

Liberal Democrats GAIN Adeyfield West on Dacorum from Conservative

Data compiled by Harry Hayfield