This Architectural Drawing is AutoCAD 2d drawing of Bathroom basin and vanity plan blocks in AutoCAD, dwg file. In today's terms, a vanity (or sometimes a “vanity unit”) is a piece of bathroom furniture that most often combines a sink, countertop, and mirror. Vanities can certainly have more than just these features, and many modern vanities incorporate lights, architectural styling details, built-in shelves, and so on.