Can I turn on the lights in the bathroom every day?

You can add a window. Allowing sunlight to penetrate is also good for air circulation.

No. First, according to the architectural design convention, the distribution of special steel bars of the balcony is less than that of the bathroom, and the thickness of the floor slab is not as thick as the bathroom. Second, the bathroom has a special sewage discharge outlet to discharge a large amount of domestic sewage, and the balcony only has rainwater pipes, and domestic sewage flows into rainwater pipes, which hinders the project of rain and sewage diversion and causes environmental pollution.

The kitchen cannot be converted into a bathroom. Because the drainage system will directly follow the kitchen drainage system, and the size of the toilet sewer pipe must be twice as thick as the size of the kitchen sewer pipe, it is troublesome to change the sewer pipe and there will be potential safety hazards such as water leakage. The second is the exhaust problem, the bathroom ventilation duct of the residence is only suitable for the exhaust of low-power motors such as bath bombs, and if the range hood is installed, the exhaust effect is relatively poor. >>>More

It depends on whether the wall is load-bearing, if not, it can be opened.

Yes, but the material should be waterproof, the workmanship should be very fine, it is necessary to prevent water and moisture from entering, and the bathroom should be kept ventilated at ordinary times to avoid clothes and cabinets from moisture and mold.