Kenworthy joined Monk Dunstone Associates in 1966 and held a number of senior positions. He retired as a director in February last year. He continued as a consultant until his death on 12 August.
Mike Horton, a director of MDA and one of his closest colleagues, said that he had made an enormous contribution to the company and to the industry. Horton said: "His knowledge of the public housing sector was probably second to none. He will be greatly missed by everyone who knew him."
Vaughan Williams worked for Kensington and Chelsea's planning department before retraining to become an architect and setting up practice MUF. Her work included investigations into the relationship between film and architecture, which she expanded on in her book Walls Have Feelings. Vaughan Williams was also an advocate of 24-hour urban activity, supporting the idea that buildings could be put to shared, time-specific uses.
After being diagnosed with cancer, Vaughan Williams wrote the play PG Wodehouse's Guide to Surviving Cancer, which was performed at the Hampstead Theatre shortly before she died.