I think cooking is somewhat important.
That would come with "fire", I think. But we had it for such a long time and Neanderthals used it too (if I am not mistaken), so unless you want to begin in 50.000 AC with a new civ of sturdy, hairy brutes as your neighbours...
Also elevators to allow tall buildings.
Uhm, this is tricky. Possibly steel? No steel cables, no big-span elevators. Electricity is the alternative, but you COULD power an elevator with coal, if you love steampunk sci-fi.
Anyway, there are so many inventions in the latter ages that if we do not package them in larger "technologies" then the game would become unmanageable. Splitting the packages would be ok for inventions with far-reaching, universal changes. Elevators made sense only in small, extra-dense American cities at the beginning, and only because of chaotic growth or emulations afterwards. You COULD have modern, functional cities without tall buildings, and many cities in Europe strive to do precisely that.
And concrete.
Forms of reinforced plaster have been used for ages since the babylonians, I figure it would be difficult to choose a discontinuity point and package it there as a technology. If you refer to "armed" concrete (reinforced with metal bars) than the tech would be again steel - which is also what allows skyscrapers.
And metal plating.
I am not sure if I understand exactly what you mean, but in case it is Galvanization then it would be electricity, wouldn't it?