/3/ - 3DCG

I'm modeling some houses with a modular approach and I'm just interested if this is a good way of doing it or not. If I could do it better, I'd like to know how.

Basically, I add a few basic loops for doors and windows, and I extrude them inwards. For the windows, I make a few additional cuts for the frame and then I extrude inwards the part for the glass one more time, so everything is a single piece. Some people would use separate meshes for windows and doors, although I don't think that would be necessary if I don't plan for a player to be able to pass through. Otherwise, I'd just model them separately, ofc. Are those ngons bad or not? I could easily add a couple more cuts to make them all quads, if that is important.