Why are my ceilings lower in my lounge and dining room compared to hall and kitchen?

[ComeOnNow0]

My house is a 1930s semi. Through the front door is the entrance hall with the lounge to the left and the dining room to the right. Through the dining room is the kitchen.

I have noticed that the ceilings of the dining room and the lounge are lower by about 5-6cm. Why would this be? Any ideas?

False ceilings to cover up probably attractive coving or dodgy plasterwork

Our ceilings are different heights in different rooms as the joists are different depths - shallower joists = higher ceilings.

Interesting peshwari - I was thinking a cover up of something but maybe different joists is the key. How old is your house? And what is the difference in height?

Our house is 1950s. It's a couple of inches difference so 5 cm. The higher ceilings are in the kitchen and hallway where the joists only span 2.5m from the outer wall to the supporting wall. The other rooms have the larger joists as they span much larger areas.

Interesting! That's the same for my house too so it sounds like it could be the joists that make the difference. Thanks for the information.