Castle with walls and towers around it, with place for farming area, lots of space for crafting stations and storage. Can be placed on a big island made with PlanBuild + InfinityHammer in the middle of the lake as shown in video example.

Mods needed for full castle functionality:
OdinKingdom
OdinArchitect
PlanBuild
InfinityHammer*(maybe?)

Heightmap_Unlimited_remake
Extra_Snap_Points_Made_Easy
Clutter
AzuWearNTearPatches (turning on no building degradation/self-destruction options)

+ Any mods that are associated and usually install together automatically through R2 or Thunderstore launchers.