Freestanding decks can be built on any part of the premises. They don't have to be attached to a building.

Decks can accomodate existing objects, including trees.

A pergola means you can have your freestanding deck away from the house, you can grow climbing plants up sides and over the roof and create your own little sanctuary in the garden. This decking also covers the water feature servicing access points, hiding one of the purely functional parts of the garden

A rail, extending from the decking, divides the garden and becomes an attractove feature in its own right.