Allerton grange school was built in 2 parts
The oldest part - the bit that became a middle school was built 1958.https://www.flickr.com/photos/mfk1970/5581283565
had about 18 classrooms. when i was there it was the lower school.
Later they built the larger middle and upper schools in the early 60's
in the mid 70's the newer buildings were found to have an issue with high alumina concrete, where chemicals put in the concrete cause corrosion in the reinforcement bars which needed structural repairs. Later the flat roofs were replaced with pitched ones.
Then school relied heavily on temporary classrooms, and no staffroom provision was made so a large workshop was converted.
The 1950's building was dated, and with the problems with the 60's building, a PFI replacement was built.
On the same site was Moor Allerton Hall primary school. that moved to a purpose built school, and I think the hall is now a private home
Close by was the Highwood Pub where some used to slip for a swift half at lunchtimes (ahem)