The approval you have may not cover the build you want.
People usually come to a construction loan having already been told what they can borrow. That figure was worked out against a finished property, and a build is not a finished property.
The lender is now also assessing a fixed price contract, a builder, a set of plans and a schedule of progress payments. Any one of those can change the answer, and it is not unusual for a lender that was comfortable with the borrower to be uncomfortable with the build.
Knowing that before a contract is signed is worth a great deal more than finding out after.


