Bulgarian PM Boyko Borissov and Irish PM Leo Varadkar speak during separate debates at the European Parliament.
The Local Government and Communities Committee take evidence on business rates.
MPs on the Brexit committee take evidence on Canada's relations with the EU.
AMs quiz the rural affairs and local government secretaries. There are debates on a Welsh Continuation Bill, cannabis for medicinal purposes, and primary care clusters.
The EU Withdrawal Bill returns to the Commons and there could be a row about promised amendments on devolved powers.