Drinks giant Diageo is to close its Park Royal brewery in north-west London by next summer and transfer the brewing of its Guinness stout for the British market to Dublin.

Diageo said that there was over-capacity between Park Royal and Dublin’s St James’s Gate brewery, as fewer young British and Irish drinkers are choosing stout over lager.

The company plans to invest £15m to expand capacity in Dublin from four million hectolitres to six million.

The move will result in the loss of around 90 jobs at the Park Royal brewery. Staff employed in sales and marketing will remain at the site.