While touring the Stephen Lawrence Centre, a community and social research center, William reportedly told well-wishers it would be "not long now" before the birth of the couple’s second child, reports the U.K.’s The Telegraph.
The Telegraph also reported that the Duke of Cambridge, as William is formally known, described becoming a father a second time as a “game-changer” and said he could not wait for the birth.
"William said he couldn't wait for the baby to be born - he said he wanted it now, he couldn't wait another minute,” bystander Parl Reardon recounted to the Telegraph.
Kate has reportedly said she is due in mid-to-late April but the couple has not publicly shared an exact due date or the sex of the baby.
William and Kate today also visited Christ Church in Gipsy Hill where they watched a performance by young people from XLP Arts Project, a charity for kids from inner London boroughs.
The royals also visited an XLP community bus and mobile recording studio that was converted from an old police riot van through MTV's “Pimp My Ride” TV show.