https://www.mygov.scot/planning-perm...s%204%20months.


Once you've applied for planning permission, the planning authority will decide whether to grant planning permission.

How long will it take?

In most cases, planning applications are decided within 2 months.

For unusually large or complex applications the time limit is 4 months. For these types of applications, Planning Authorities should offer to enter into a*processing agreement*with developers which provides certainty and a project managed approach to decision making.