Addition - North Wing - Trophy Room is a schematic in Skyrim: Hearthfire. It is used by the Player Housing system.
Add the North Wing Trophy Room using the Drafting Table. You can only add one North Wing section to a house.
You can only expand your house with new wings after completing the Main Hall
The Trophy Room lets you store and display souvenirs and trophies from your adventures.
Function
Use this schematic to add a North Wing section containing a Trophy Room