If you are unsure what a Nissen Hut is, they were originally used to house army troops but were adapted to house new migrants to Australia until they found permanent housing. They were corrugated iron in the shape of an arch. The Nissen Huts would have been boiling hot in summer and freezing in winter.
They were even used for public buildings, such as Ashwood High School.
What I thought were Nissen Huts were Robin Boyd designed 'igloos' and they are in High Street Road near Cleveland Road. I certainly remember this igloo looking very much as it is below. They date back to 1954 and I expect the inspiration came from the not too far away Nissen Huts.
These more recent photos were taken by Muzza from McCrae.
This one is being used as a private residence. While it may be nice inside, I find the igloos extraordinarily ugly. The former supermarket and residence is registered as a Heritage Place on the Victorian Heritage Register. Do you see them as having great merit?