The Nursery School was built in 1930 and was one of the first municipal nursery schools in the country.
Columbia Market Nursery is a listed building.
You can see more details here: https://historicengland.org.uk/listing/the-list/list-entry/1393668
You can see the Nursery in this photo on the left, from the Collage London Picture Archive Website.
Click on the photo to visit the Collage website and find out more.