What type of detached buildings and yard improvements are considered when valuing my property? What types are not considered?

Detached buildings such as garages, pole buildings and other agricultural buildings are considered and valued. Also detached decks, patios and porches, in-ground swimming pools and tennis courts also effect value. Sheds which are built on a permanent foundation are valued. Sheds on blocks, wheels or without foundation are generally listed, but not valued.
Driveways are listed, but are not valued.
Sidewalks, fencing, landscaping are not listed.