I find this thread interesting

But I can offer my opinion

By the same token , if you use Your home as office or run a small biz, do you convert your house to commercial property? You can ask so many villagers doing that sort of Industrial Kampung Kevin, do they do that?

Of coz not.Why the hastle?

So this boils down to enforcement vs law.

If you are doing small small biz and building small small house, staying low profile and plant some fruit trees , using agricultural land , dont disturb and upsets your neighbors, you will be fine.

Law permit one house on agricultural land.