Pinner schoolboy Jonathan Levene, 11, had a date in Parliament on Tuesday, to receive his prize as winner of a competition run by Go Givers, an educational organisation to promote citizenship.
Entrants had to produce their own manifesto for the general election.
The deputy head boy of Moriah Jewish Day School, whose manifesto focused on poverty, bullying and launching a National Students' Council, said: "Britain's future is in the hands of us children. If we can team up to fix these problems and launch new ideas, we will have a wonderful country in years to come."
Moriah also won a trophy for the school with the highest standard of entries among the 1,700 submitted.
To get more news, click here to sign up for our free daily newsletter.