I think the place you are looking for was on the corner of George Rd and Brookvale Rd and I think was called Highcroft. My nan resided there due to dementia and she died in 1968. It looks as if houses have took its place now. Its the building next to Lakeside Walk.View attachment 111883
I can confirm that the buildings by Lakeside Walk were built as sheltered accommodation for elderly persons, and were sited on what was Witton Hall, itself a "home for the aged' for many years.
Paulo76. I think I got the name wrong, I was probably thinking of Highcroft Hospital. Just looked on nans death certificate but it doesn't say the name of the place. I remember visiting her 3 or 4 times before she died.