There’s nothing wrong with having a backyard living area built over the years (as opposed to all at once). In fact, phasing is one of the best ways to incorporate multiple outdoor living zones into one complete space.
But that’s all assuming it’s completed in a way that looks like all of the spaces were always meant to be one. When it’s not, it can negatively impact the entire look and functionality of the area.
For this particular landscaping project in Strasburg, PA, there were multiple existing spaces that were built and added over the years by different contractors—and every single one looked like it was built as a separate project. The individual areas lacked unification and it was quite obvious that this outdoor living area was designed and developed over time. That’s why the family was looking to redo all of the individual zones to make it look and function as one intentional space.