As you said, they were newly built in the early 1950's.
My Mam had said that they were allocated one, as they were being built. She used to walk from Frederick Street, up to what was a building site. She was so excited, a new house, with indoor plumbing, and a garden.
My sister, Lynda, was born there in 1954, then me in 1956, and the youngest, John, in 1959.
No 20 is just about opposite the end of Dukes' Avenue.
Are you still in the Hebburn area? I am up on the west coast of Scotland, in Ayrshire.
Regards.