What should be the minimum distance between 2 constructions or buildings?

Question

What should be the minimum distance between 2 constructions or buildings?

Answer 1

Now a days I've noticed there is hardly any at all.

Answer 2

100m

Answer 3

You have to look at the city building code where you are building, the type of structure,residential or commercial - all kinds of laws -even on your own property.  

If you get to close and do so without a permit, they could make you tear it down.

Answer 4

the minimum distance between two buildings depends on the codal provisions laid by the municipal co-operation of that district(the place u stay)!!!!!