Wall type options for garage replacement

[Will N.]

Thinking of replacing an old concrete garage thay sits on a slab/concrete floor. Typical 60s one made of concrete sections, apex 2.4m. Would like to replace with proper building (will need to go through planning permission). What would be the cheapest option of wall in a rebuild with minimal foundation. Limited space. Is single skin an option to maximise inside space (damp?).
If going higher than current is using steels a viable option costwise? Thinking of a pitched roof high on one side to maximise space and height inside, about 3.8 mtrs high on one side, single height on lowest.
Thoughts on construction? Is blockwork/cladding the way to go? Or timber stud walls?
Needed for dry storage etc.
Thank you
Will

 

[^woody^]

Concrete blocks and a flat roof would be cheap. Not pretty but that does not seen to be a criteria.

Ventilation keeps the insides dry, not any cladding.

 

[Notch7]

Concrete prefab garages are quite cheap.

Concrete blocks as Woody says are cheap.

Timber stud and cladding, will cost more unless you are doing yourself.