Walled estates could be an instanced land plot. Unlike regular landplots they are surrounded by a walled garden (so no view unfortunately). They are accessable from a housing zone by talking to a NPC.

Walled Estates come in all the plot sizes available for normal housing, however, Free Companies will be able to purchase two, larger, plot sizes called a Free Company Estates and Free Company Headquarters.

A Free Company may only own one Free Company headquarters, but may own a free company estate in each town. In order to qualify for a Free Company Headquarters or Free Company Estate a free company may not own any regular housing plots.

Along with the walled garden space, a Free Company Headquarters also comes with two special buildings, each replacing one wall along the garden. The first building contains an airship dock and workshop, where you can view your airship, customise it cosmetically and enter the airship interior. The second building serves as a internal dock and workshop for the company submersable.