About Unit
About the property's interior. The term townhouse has come to be used to describe non-uniform living units that are designed to mimic a detached home. The distinction between living units called apartments and those called townhouses is that a townhouse usually consists of multiple floors and has its own outside door as opposed to being on only one floor and/or having access via either an interior hallway or an exterior balcony-style walkway.
Another distinction is that in most areas of Canada, apartment refers to rental housing, while townhouse typically refers to an individually owned dwelling, with no other unit beneath or above. Describe the indoor aspects of your townhouse unit whether it is for sale or rent.
Townhouses can also be "stacked". This refers to multiple units vertically (typically two), normally each with its own private entrance from the street or at least from the outside.