I see ordinary family houses built around me. There's maybe a timber frame (or not). Then there's a bunch of guys laying bricks one by one, sticking some insula

I see ordinary family houses built around me. There's maybe a timber frame (or not). Then there's a bunch of guys laying bricks one by one, sticking some insulation on, putting pipes and cables through it all. Surely some of it is prefabricated, but it doesn't look like a bunch of Ikea-esque bits being just attached together.