David Hart, who oversaw the $250 million renovation of the Utah Capitol during his decade with the state, announced his resignation Tuesday.
Hart, executive director and architect of the Capitol Preservation Board, said he joining MOCA Systems, a Boston-based project management company, as a vice president and regional manager.
The company is opening a Salt Lake office and reportedly will help with construction of the federal government's nearly $2 billion spy center planned for Camp Williams.
"I realized all the goals I had set had been achieved," Hart said. The Capitol renovation, which took four years, included a massive earthquake retrofit of the granite building.
Tuesday, he told board members, including leaders of all three branches of government, that they have reached an "important milestone," moving from renovators to preservationists.
After a closed session, the board appointed its spokeswoman, Allyson Gamble, to be interim director during a review of how the statehouse complex is run.
"We realize this is a change in direction, and we want to make sure we get it right," said the board's chairman, Lt. Gov. Greg Bell. The review could take several months, he said.
Although there has been some talk of changing the structure of the board, Bell said he doubted that would be recommended. Instead, he said, the review will focus on the role of the executive director and other staff.
Hart's last day is Dec. 31. He said he decided months ago his work at the Capitol was done, especially because the downturn in the economy has stalled any plans for replacing the complex's state office building.
"As an architect, my love is to repair, build and do those kinds of things," he said.