Porta Cabin for Helper

We need to find a porta cabin to be installed on the roof-top of our house for our helper. Does anyone know whether they also come with toilet/shower facilities?

Yes, building a room on the roof is not allowed under the Building Dept regulation, therefore we are considering buying a porta cabin instead.

From the Buildings Dept website:


Q. If I wish to erect storage cabinets on the roof of my property, do I need approval and consent from the BD?



A. Prior approval and consent from the BD are required for erecting prefabricated structures including mobile houses and man-size storage cabinets on the main roof, podium roof or open yard of a building. It is because large storage cabinets occupying space will likely contravene the floor area limitation and other building regulations.




Try Evergood, but I don't know if it will be able to help you to get planning permission - for that I think you'll have to get a structural engineer. BTW, how are you going to get it up there? Or do you live in a 1/2 storey building?