When the Admiral design studies preceded Jutland

When were the alternative Admiral-class design studies completed?

Before Jutland, according to the answer, which argues that selecting a fast battleship could have avoided the later construction interruption.

The Admiral design alternatives discussed here were completed before the Battle of Jutland. The answer argues that choosing the fast-battleship option could have avoided the interruption associated with revising the battlecruiser design after the battle. Fisher's influence is given as a reason for favoring the battlecruiser concept. The comparison distinguishes an enlarged development of the Invincible idea from a more heavily armed successor to Tiger. The claim about uninterrupted construction is a counterfactual judgment about the rejected design.