growstuff
I'm still not sure about that Casdon. Most of the schools are academies, so Essex County Council wouldn't have been responsible for the surveys.
As I mentioned before, Essex has more schools than almost any other county. I'm familiar with a number of the schools affected and they're in areas which experience huge population growth in the post war years. Most of the schools were put up cheaply to cope with the growth and ROSLA. Nearly all the secondary schools are former secondary moderns, which replaced delapidated elementary schools. They were usually built in the same style.
I guess we'll just have to wait for the final tally. Hopefully, it won't be 10% across the country, but it's not going to be a small number.
I don’t know either growstuff, I just doubt that Essex is unique in having either lots of academies or high population growth. I’m a cynic I think, but my gut tells me there will be many, many more.