Dwelling building regulations?

answer no 1 bilbo ...you have got it wrong ...im a proper builder ..there has NEVER EVER been a building reg that states you must have a ventilated lobby between the kitchen and the toilet ..never has been ..never will be ..BUT ..if you were having any work done by the enviromental health people then they insisted that you did have a ventilated lobby ..or create one to qualify for a grant ...so the answer is ..it was converted to building regs standard ...suggest if your still unsure ..just ring building control ..they will tell you ...but i done at least 100 conversions similar to yours ..all under building control