The basic idea is that a building (house, business, etc...) would be on a type of foundation that would allow it to be lifted into the air (not by a lot, I'm thinking inches at most) to store energy that is created by a renewable source. The building would slowly and very minutely raise as energy is created. When the energy needs to be used it would then be lowered and use a flywheel or another method to power a generator and convert the energy into electricity.
Would this be possible with current technology? What reasons would prevent this from being possible/practical (money, materials, design, legality, ect...)?