No, a construction site contains plenty other stuff than concrete and steel: tools, equipment, building materials, temporary buildings for the workers, cables and piping.
On top of that each time concrete gets fire damage, it gets weaker and may need to be replaced, at least core samples + weeks of analysis time + $$$ is needed to determine the damage.
And let’s say they eventually finish building the apartments, they may never stop smelling like a BBQ.
And then they need to hire 24/7 security, and maybe new workers because they don’t want to work in a DMZ.