INSTALLING THAT LITTLE BIT EXTRA
Installing a mezzanine requires a professional builder. Larger examples may need a structural engineer.
Planning permission is unlikely to be needed, but you should consult your council on building regulations including ventilation, fire protection and means of escape.
Restricted height is possible if the platform is to be used only for sleeping or for children playing. Most architects recommend a 2.1m minimum ceiling height.
For simpler mezzanines, expect to pay a few thousand pounds. Extra costs will be incurred if water tanks have to be moved or supports need to be installed.