This weekend marks what would have been Stephen Lawrence’s 40th birthday.

The black teenager, born on September 13, 1974, was murdered by a gang of white youths in a racist attack at a bus stop in Eltham on the night of April 22, 1993.

The anniversary will lend added poignancy to the annual Stephen Lawrence Memorial Lecture, set to take place on Tuesday (September 16) at the Royal Institute of British Architects in Portland Place, central London.

The talk will be given by David Adjaye, the architect who designed the Stephen Lawrence Centre in Deptford where the Stephen Lawrence Trust is based.

Stephen’s mother Baroness Doreen Lawrence was driven to start the trust as a way of helping more minority students gain access to architecture because of the lack of diversity in the profession and its professional body, the Royal Institute of British Architects (RIBA).

It was Stephen’s ambition to be an architect before he was killed.