Hi, 

I am a current student. One of my projects is to make someone else’s building fire safe, I’m a little confused on the sprinkler aspects of it and whether it would need them and if so where. I assume in the corridors and communal areas? But not sure how many etc etc. Any help would be appreciated. 

It is a multi-occupancy residential building (flats), detached. I have attached plans and sections. 

Any further questions do not hesitate to ask, as mentioned it is not my design so I will answer to the best of my ability. 

Assuming you are in the UK it's all in here https://www.gov.uk/government/publications/fire-safety-approved-document-b

The sketched building appears as if it is below the height in England for mandatory sprinklers (but not so in Wales)

If you were sprinkler protecting the building it would usually be just the flats not the common circulation areas.