While in Dr. Ballantine's office, Sherlock opens a safe that is set horizontally and when he swings the door open all the way, the hinge tension makes the whole frame of the safe's face lift up, which should obviously be securely attached to the main body of the safe.
At 32:48, Sherlock explains if you expand the main facility on both sides, the center of the facility will remain the same. So, the distance between the centre of the central facility and the centre of the peripheral buildings will remain the same. There is no need to expand the peripheral buildings to deceive the regulations.
All the characters pronounce victim's name "König" and victim's tattoo "rache" wrong. Including Sherlock, who speaks more than 10 languages fluently and should know how to read it correctly.