OH MY GOD. I just had a conversation that makes me want to SCREAM. 
So, if my Dad were to buy the property we would let it to local students so I thought I'd better check what landlord regulations you need to adhere to.
The reason our buyer pulled out two weeks ago is because the local conservation officer (who she knew and got over because we are grade II listed) said that in order to make it meet landlord fire regs you would need all new fire doors and replastering all hallways.
So, I call the council now to double check the regs in case my Dad buys it to see what added work he'd need to do.
The actual environmental health officer tells me that YOU ONLY NEED A FIRE DOOR ON THE KITCHEN!!!!! And when I told him what the other guy said, he said well he's only a conservation officer, you need to talk to me in Building Control who actually make these decisions.
So now it turns out our buyer pulled out on the basis of this WRONG advice.
I can feel the smoke coming out of my ears right now.

Sorry, I needed to rant about that