The schools full address was,
Holly Bank School,
Abbot's Hayes consisted of 4 large properties, 1 to 4 and Abbot's Hayes Lodge.
The properties had between 11 and 14 rooms, the lodge having only about 5.
Abbot's Hayes and the lodge appear in numerous directories and census up to at least 1923.
Holly Bank school appearing in the 1940 telephone book suggests it opened between 1923 and 1940. Being able to find numbers 2, 3 and 4 in various telephone books also suggests the school was Number 1, Abbot's Hayes, approximately a 12 room house when it was residential.
God help us,
Don't send Jesus,
This is no place for children.