Regulations Regarding Building Close To The Base Of Mountains?

[cheshiremusicman]

I wonder if anybody can enlighten us as to what, if any, are the rules with regard to what a a developer can do with regard to altering the contours of land near to the base of a mountain.

A development is in the process of taking shape at the back of our estate on which we live and the developer has (and is still in the process of) increasing the height of the land behind the wall that terminates our estate. The land has now been built up by some 3 ( three) metres and the surface is now some one metre above the wall height - which had previously been increased by some half a metre to give more privacy/security in the past. The developer is 'cutting' the land and removing surface soil from the rear of the development and dumping it progessively to level the land.

Our question is - Is this legal and does he have to have applied for permission (and been granted same) from the local authorites in order to undertake this restructuring prior to building properties.

How 'close' to base of a mountain can this kind of development take palace. I understand that there was an edict from the King of Thailand banning development close to the base of mountains or close to the high tide marks.

ANY information would be gratefully received.