LONDON — Thousands of children in England are growing up in repurposed shipping containers, converted office blocks and cramped rooms in hostels, usually far away from their schools and family support networks, a new report by the Children’s Commissioner has found.

Official statistics show that 124,000 children in England are without permanent accommodation, an 80 percent increase since 2010. Yet those figures do not represent the hidden homeless, an estimated 92,000 children, who spend long periods of time “couch surfing” between different households, according to the study.

“Something has gone very wrong with our housing system when children are growing up in B&Bs, shipping containers and old office blocks,” said Anne Longfield, the Children’s Commissioner for England.

“Children have told us of the disruptive and at times frightening impact this can have on their lives. It is a scandal that a country as prosperous as ours is leaving tens of thousands of families in temporary accommodation for long periods of time, or to sofa surf.”