Looks like a former Dentists or Doctors surgery. Someone needed to power a lot of equipment so had it fitted accordingly. Since it hasn't burned down, I would assume it was all done correctly by a certified Electrician and whilst it is ugly, it does have a certain symmetry to it. This is what happens when you cram all the equipment needed for a modern business into the living room of a house. Chances are the former owners moved into a building that was built for their needs when they outgrew that house.