Wee Brian Thanks for your contribution. I've already spent many hours/days writing and talking to my client about this issue, talking to the local authority fire officer (initially consulted and made some reasonable comment but has since back pedalled rapidly and now has washed his hands), writing to the AI, etc. - and as Kurnal has pointed out it isn't as simple as that. There is no way we would get any positive result - the reason I blah blah on here is to try and get some decent feedback.
Unfortunately I work for a client who is taking over the school, they have had no input on the design and currently have not taken ownership of the extension due to the many issues involved partly due to my inputs - technically at this time they have no contract with the AI or the developer so we couldn't report to the CIC even if we wanted to. Should they take over the extension I will still not waste my time as our contract won't be with the AI but with the city council who can't wait to get rid of the place - hopefully my clients will refuse to accept the new build and lumber the local tax payer with a ?2 million white elephant but I doubt that will happen and we'll unfortunately accept the risk. Its not the first time but once again our hands are tied.