Gary spent more than three decades at Broadway Malyan where he was elected to the role of group managing director in 2010. He stood down from the role months before the end of his final term in 2018 due to ill health.
Group chairman Stuart Rough paid tribute to Gary who he had worked alongside for more than 30 years.
He said: “The untimely loss of our valued friend and close colleague has been felt acutely across the practice where to many, he was much more than just a colleague.
“During his time as a partner, director and managing director, Gary had a huge influence on the direction of the practice and he leaves an unrivalled legacy in terms of where Broadway Malyan sits today.
“However, more importantly Gary will be remembered by everyone who knew him as a fantastic human being. He was incredibly personable, knew everybody’s name at the practice and thoroughly enjoyed spending time with his colleagues, whether they were a senior director or a newly appointed student.
“Everyone at Broadway Malyan will miss Gary hugely and we all send our condolences to his beloved wife Lorraine and his four children during this incredibly sad and difficult time.”
After joining Broadway Malyan Gary spent 15 years working at the practice’s London studio, where he became a partner and then a director of the incorporated practice, before focusing on developing the business throughout the UK.