Lagan Group — one of Ireland’s largest cement, building products, and contractors — has been sold for €526m after it completed the sale of most of its business to the London AIM-listed Breedon Group.

The approach for Belfast-based Lagan Group — one of Ireland’s largest cement, building products, and contractors — said an approach by the UK stock-market listed Breedon for part of its business does not involve any Lagan company involved in legal disputes over the use of pyrite in homes and other premises.

Ambitious plans for a new £180m (€196m) housing development on the hills above Belfast were unveiled today.