According to bca you ll need a minimum clearance height from the finished floor to the underside of the loft of 2 4m.
Loft high ceiling bedroom.
In other words loft space is used for additional or optional space as opposed to main rooms such as kitchens bathrooms and living rooms although in some cases especially with apartments the loft is the sole bedroom in the home.
If you have a high ceiling you might want to check out these ideas.
One issue all loft designs wrestle with is access.
Ceilings can go beyond the industry standard to 10 and 12 feet high.
High ceilings on the main floor of the loft means that your raised bedroom has much lower ceilings.
Higher ceilings up to 12 feet are not uncommon especially in renovated loft apartments and pre war style architecture.
Anything more will require a permit and approval from a professional engineer to ensure that the loft structure complies to all safety requirements.
As long as your proposed loft area does not take more than 5 sqm planning permission is not required from bca.
Some homes use a ladder which isn t the easiest to use.