*You may have a total of 16 floors (counting ground level as the first floor)
*[[Carpentry]] is checked for planning each floor and building wooden floors, openings, staircases, walls, and fences.
*The first floor always requires a skill of at least 5, even if the building plan has already been finalized by another character.
*[[Paving]] is required for stone floors, openings, and staircases.
*[[Masonry]] is required for stone walls, fences, parapets, as well as pottery and slate roofs.
{| class="wikitable" align=left
!Floors !! Skill Requirement
|-
|| 1 || 5
|-
|| 2 || 21