Trends have always existed in all types of design.
Fashion is one of the most obvious areas where trends are a huge 'thing'.
Trends happen in tech gadgets too.
Even within movies and music.
So it is important to observe that these trends happen in areas as big and impacting as architecture too.
This is an impression from London's Docklands.
All these builds look virtually the same.
Their design is in such a similar style.
It is obvious that one design had a major impact on another design.
Many factors impact on this.
Materials available in the market.
The 'feel' architects are looking to achieve.
The coherence needed for the area.
Allowed techniques within the zone of the city.
It is as if one building influenced another's design.