The leader of Birmingham which has the B postcode is the Conservative Party (UK). The city is the home town of John Madin, the architect who designed 103 Colmore Row.
[['Birmingham', 'POSTAL_CODE', 'B postcode area'], ['Birmingham', 'LEADER_NAME', 'Conservative Party (UK)'], ['103 Colmore Row', 'ARCHITECT', 'John Madin'], ['John Madin', 'HOMETOWN', 'Birmingham']]