Independent and boarding schools
Surrey’s concentration of independent schools produces site types that are uncommon elsewhere: large campuses of converted country houses, purpose-built additions across extensive grounds, and in many cases residential boarding accommodation.
Boarding changes the problem substantially. The site is occupied around the clock, which means alerting has to work at three in the morning as reliably as at midday, and the procedure needs a decision-making chain that covers nights and weekends.
Residential accommodation also raises questions a day school does not face. Where pupils sleep, how they are accounted for, and how an alert reaches them without causing disproportionate alarm all need deciding rather than assuming.