Developers broke ground earlier this month on a $460-million redevelopment of the 33-story New Orleans World Trade Center tower into a Four Seasons Hotel and Residences, bringing to fruition a restoration that has been more than 20 years in the making and mired in setbacks.

Large contractors know it can’t last, but right now the market continues to expand, and few firms see any clear signs of a slowdown.

The markets continue to grow, but design firms are concerned about infrastructure funding, tariffs and staff shortages.

Richmond, Calif.-based Alten Construction has begun construction on the historical Napa County Courthouse in Napa, Calif.