In modern times I think you're right. Certainly in 1950 and 1964 the lowest odd no is 75. In 1912 it was 35. On looking back to 1876, 1,3,5 were called shirley villas ands no 7 was villa cottage, but , on thinking about it, these were before the school was there, and were probably on the site of the school, which probably took up at least a dozen houses, and a dozen would take you to 23. In fact after the school was built , between 1880 and 1884, no number lower than 37 appears on that side of the road.
Incidentally, the "wrong" vine photo. was it one we've already seen or a new one from somewhere else?
Mike