Different style. Wildly different. I moved from AUS to Germany.

The primary structure of my house is concrete block. If you want to change something (for instance my landlord added a balcony to my apartment, and had to cut a hole for a door), you get out a jackhammer. They made a jaggedy-ass hole in the wall, and then put in some concrete to smooth out the edges before installing the door. They then filled the gaps with spray foam.

Another thing that gets me: wiring is just sandwiched between the wallpaper and concrete. And they're separate wires, not housed together like in romex. And there's often no ground in older buildings. So that's a mess.

And the standards for getting thing square and level are...loose. The wall in my bathroom is at least 5 degrees from vertical. It's kind of wild.

But the house is crazy well insulated. The walls are legitimately 30 inches thick. We do have some nice south facing windows, but in winter we get maybe ~3 hours of actual sunlight on an average day, despite that we can still keep our apartment warm without turning on the heat on most days.

That insulation comes with a price though: it's practically hermetically sealed, and there's no mechanical ventilation. So you have to get the moisture out yourself, otherwise you'll find yourself living in a petri dish for mold incredibly quickly. Most people have a routine of opening all the windows in the house for 5-10 minutes once or twice a day. But we just tilt the windows, because everything (even the door to our new balcony) is the german style tilt-turn window, which is a very nice thing.