The land of Laurentia is divided into 3 types of territory. 

The territory in red is the capital of Laurentia, Serena. You need a pre-authorization to build, granted by the Grand Council of Laurentia. The construction on this territory is strictly managed.

The territory in green is under the authority of the aristocrats of Laurentia. The use of the territory is under their authority, so it is not allowed to build or use the territory without the permission of the aristocrat who administers the territory.

The rest, the grand council exercises its authority over the territory in a flexible way. You have to ask for permission to build or use the land, but this is usually granted to anyone who asks and offers great flexibility.