I have been talking to a chap I know today who lived on Houldsworth Drive on that estate in the late 1980/1990's .He told me they were definitely Coal Board houses which were condemned along with others throughout the country in 1986 by an Act of Parliament.
Grants were made available to update them which included removing the concrete panels which they were built with.
The roofs were suspended by heavy pit props and first breeze blocks and then bricks were built up to the roof level.Once that was done the concrete panels were then removed.
Does that make sense?
It does Umpire thanks for that.
Obviously very precise work and I'm supposing it was cheaper then flattening them and rebuilding, although it wouldn't have been cheap would it.
Certainly some of the houses on the Hurst Farm Estate in Matlock had massive re structural work done to them but they do look good now.
They haven't got the same outer finish though as Hady Estate houses, so I'm thinking maybe it was decided to finish them off in a more 'unique' way to others?