LK5457

Hi, hoping someone can help. I am the sole freeholder of a Georgian property that was converted into 4 apartments in the 1940's. Only mine and one other apartment share a communal hallway and flight of stairs to our own front doors. I don't own any of the other properties. Some beautiful original features like the front door to the communal hallway and an internal glass lobby. Really don't want to have to replace or remove these lovely features. When I acquired my apartment the entire Freehold came with it so I am the responsible person for communal areas. What fire risk guidelines do I need to follow for a property of this age, 1750's? It has never had a fire risk assessment before and, without question, there would only have been antiquated and cheap conversion methods used when it was cut up; finding evidence of this in my own home. Can anyone give me advice or a link that addresses this type of property? Thanks