Louise and Lucia

We would like to moor a boat at the end of our garden on the river severn in Shrewbury . Our postcode is SY 11pf How do we go about getting permission to do this? What are we not allowed allowed to do in terms of having a boat moored at the end of our garden? Presume have to get a license and someone will decide if our location is suitable then I suppose we will have to pay somebody but I don’t know any more ! Any advice very gratefully received