For the past six months, Douglas Wallace has been grappling with the shock loss of its enigmatic co-founder, Hugh Wallace. Wallace set up the agency with Alan Douglas in 1989, and it would go on to become one of the country’s best-known architectural and interior design businesses. It is a company that revived itself after the financial crash and reinvented itself in the wake of the pandemic. In December, Wallace, who was best known as a judge on RTÉ’s Home of the Year, passed away suddenly in his home at the age of 68. “Something like that, where you’ve got…