Thanks Tony for tanking the time to respond. Your general conclusion is what I was thinking through in my head last night.
Its a two story house, everyone who has visited has said the beam looks huge! Would rather it be a good substantial size though.
As you say hopefully its a one time...
You are correct. The two windows on the pics are at either end of the RSJ. The RSJ is 6.2m long so fairly substantial.
I was expecting some movement but is this ok.
Building Control are out tomorrow, do I ask them?