Keir Starmer is teeing up plans for billions of pounds worth of new private investment in Britain in the first few months of a Labour government — a surge that the opposition party hopes is large enough to help meet its ambitious growth goals and avoid sweeping tax hikes if it wins next week’s election.

Rachel Reeves, who is set to become Britain’s first woman Chancellor of the Exchequer on July 5 if polls are correct, has for months been working to spark investors’ interest in projects that are central to Labour’s manifesto, people familiar with the matter said. Areas of focus include the push into green energy, ramping up house-building and improving public transport and the roads.