External skin before timber frame?

[James1234]

I am about to start work on my garage and my planned construction is timber frame with a masonry outer skin.

One section of the garage is tight to a boundary wall so ideally I would erect the masonry external skin and then construct the timber frame inside it.

The problem I see with this approach is being able to install the wall ties. As far as I am aware wall ties in a timber frame need to be screwed into the timber and then the cladding constructed. My back up plan is to make the inner skin blockwork in this section but thought I would ask to see if anyone knew of a method of tying the timber frame to an already constructed masonry skin.