Tree removal?

3.2 Permit not required - trees within buildings or structures
Notwithstanding Article 2 of this by-law, a permit is not required for the mJury or destruction of a tree within a building or structure, a solarium, rooftop garden, an interior courtyard having a soil depth of less than 1.5 metres above a built substructure, nursery and a fruit tree that provides fruit for human consumption.

What exactly does does within building or structure mean?