This is a rough beginning to a typology of outbuildings - the formerly ubiquitous sheds of the farmstead and residential complex.
This excludes small barns.
Simply a one-room outbuilding, housing many different purposes. The one above served as a springhouse or wellhouse. Roof can be gabled or single-slope.
Adding a second floor, and outfitting it for livestock use, will get you a Tower Shed.
A two-room outbuilding, with rooms arranged side-by-side parallel to the long axis.
A two-room outbuilding with a split-level plan, with single room stacked atop single room. The upper room is usually ordinary storage, while the lower is intended as a cool storage room. Sometimes the lower room has a spring runing through it to augment the cooling capacity.
Sometmes there is a lobby room, but usually that is either an open patio in front or sometimes an area sheltered by an extension of the roof forward. Roof is usually front-gabled.
I can't determine where it quite belongs: it's not a livestock barn (does not house animals); isn't quite a Domestic Outbuilding (though requiring domestic intensive care, it's almost always very close to or attached to the cattle's barn); it's non-traditional (most surviving examples being being required by regulations of the early 20thC+)...
This is smaller than a one-room (single-cell) shed, and has very limited uses.
This is a Booth designed to be a toilet. Most are small one- or two-seaters; some are up to four or more.
