1100 mm as per the code. There is no valid reason reason to think otherwise. Unless you believe that internal components were used in error in which case it would be 950mm but you or Bridget would need a valid reason to think that.
I'll make it easy: The average human being is crap at estimating mass distance and time so
screw what Bridget O'Donnell thought about the balcony/balustrade height. For her opinion to count she would need to know how high it was as measured rather than viewed and guessed, added to a knowledge of Eurocodes allied to the construction industry. Had she that knowledge I am sure she would have said "the balustrades were below the height recommended by the the code" rather than the woolly remarks attributed to her.
The chain from start to finish on the building project will include but not be limited to:
Client;architect;structural engineering consultant;local planning officer;main contractor;balustrade subcontractor;building inspectors. I would imagine balustrades without the relevant code would have been noticed by most of those with remedial works carried out as a result.
Unless of course we are expected to believe there was a vast conspiracy theory around a p**s balling bit of hand rail ?
The thing that worries me more than the height, which seems pretty OK, is the gap between each vertical of the railings. There are strict Laws about that too. A child must not be able to get his head stuck in the gap, yet they must be narrow enough to keep the child in.
I think the photo supposedly from the Paynes apartment [Btw, I dont think that is Fiona] gives a false impression, because the camera is held high and it seems the person is standing well away from the railings. It is difficult to comprehend without a trained eye, but Alice and some others will understand the perspective causing this false impression
The height of 1.1 metres was specified so that an adult leaning over the balcony would not be top heavy and fall over accidentally. I used to be tall but now i have shrunk, I am medium height and 1.1 metres (over 3'6") comes up well above my waist on to my chest. It would take a man of almost 7' to accidentally topple over railings that height.
Without the aid of the mini wall underneath, no 3 - 4 year old girl would be able to scale the railings ... and I am very doubtful if she would be able to scale it even using that.
The danger imo, is the rather wide gaps between the railings .... but I am not there to measure them, so I cant be sure.
What we must bear in mind is the date that these apartments were built and the Laws at that time. They might have been different then.