In day to day language biophilic design and biophilic architecture are interchangeably used.
The difference can best be described as biophilic architecture being a way to practice biophilic design.
Biophilic design is a concept used in the building industry, both at the building and city scale, which aims at creating a connection between occupants and nature with the intent of reaping environmental, societal, economic and health benefits.
Biophilic architecture, by its very nature, has a greater overlap with (biophilic) urban planning than traditional architecture. Large scale adoption of biophilic architecture inevitably results in a biophilic city.
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