Morning,

im managing a block of 13 flats over 3 floors. Ground, one and two. On the second floor there’s a step up to a small patio door that opens out onto a communal small terrace. It has the build walls on two sides and glass panels on the other two, about 3 ft high. No exit off the terrace. You could get over it by jumping into the flat roof of the 1st floor. 

Would this be classed as a fire door and exit?

Simple answer - no!