Pretty sure people with those ceilings don’t have to worry either, because they have plenty of tricks to hide their wealth from taxes. I get what OP means, but they really missed the mark, because it’s pretty much only people with ceilings like the one he posted that actually have to worry: Rich enough to own a suburban home, but not rich enough to indulge in elaborate tax schemes.
Why would ceiling types be worried and not the owners? Is there any lore reason for that?
Coffered ceilings aren’t that expensive so long as you have 10ft ceilings.
If you have standard 8ft ceilings you need to raise the ceiling to meet the 8ft code, which can be very expensive or infeasible(if you dont have an attic above the room.).
The poor version is to put a couple layers of drywall up to create the pattern, it does not look great.
I’ve done regular drywall ceiling more than once and I can’t imagine how you would make good looking coffered ceiling out of drywall layers 😂
