Help. How to expand my stockpile attachment and my farm?

[MaYo]

is there a way to expand my stockpile attachment and my farm without destroying the building??

[Book of Oriole]

Assuming you haven’t maxed out the size allowed (3 stockpile attachments or 40 farm tiles), click on the main building hub (stockpile hut or farm tent) and in the info screen, you’ll see a second tab with a hammer. Click the hammer to access the submenu for attachments.