Victorian single skin two storey addition

[theprinceofdarkness]

My Son is trying to buy a Victorian property with a single brick skin, double storey rear addition. The mortgage company is waffling on about the stability of said addition. I can see that there are heat losses associated with it, which we could cure with dry lining, but as the rear addition has been up for 130 years and the whole street is full of them, I reckon they are stable enough.
Any one with experience in this area? , has your rear addition fallen down?
Frank

 

[noseall]

You will not solve or satisfy heat loss regulations, in a half brick thick structure, by dry lining.

What specifically are the lenders bothered about in terms of stability?

Roof spread, wind loading, foundations, buttressing, arching...???

What type of roof is covering the extension?

 

[^woody^]

A single brick thick wall (230mm) would not be unstable and would be typical of any Victorian house, not not really an issue

Heat loss would not come in to a lenders consideration

If there are no signs of movement or ongoing movement, then I can't see why a lender would be concerned

 

[noseall]

Can you clarify whether it is a half brick thick or a full brick thick structure?

110mm or 230mm.

 

[stuart45]

I would take a punt it's half brick.

 

[theprinceofdarkness]

Its a 110mm thick wall with not a sign of movement.
Frank