[Caz]

Think I know the ones you mean.

No, the ones on Lancaster Ave and around it were double fronted, redbrick houses.(not prefabs as a lot of houses put up just after the war were) They had large gardens back & front.
They had metal window frames and concrete floors, even upstairs!
We used to use those old brown Stantons pop jars as hot water bottles at the time, if they rolled out they got smashed!
As far as I know they were built during the war for the workers at the Bristol factory (aircraft), which I think was based at the GEC site.
They were later used as part of the general council housing stock.
Not sure about the origins of the Moss Hall Road ones. Do you mean the ones that looked a bit like seaside chalets? Always reminds me of a place in Blackpool down there.