can be for inner or outer city use
what you need to do is
step 1
click the desired building to demolish
step 2
after clicking it a box will appear with a picture of the building in the left side
inside the picture there is a "no enter sign"
step 3
click it, and you will be left with three options one of them is demolish all the way
which needed a dynamite to do ^_^

if I have helped you, see the scale on the right side of this box? click it to + rep me ^_^