wow
firstly love the familiar name you have for the sunshine room, do you have smilies in there or is it named because of being yellow?
A room plan would compliment wonderfully what you have written. Cut out furniture pieces would perhaps help in allowing you to see how the shelving unit could be moved to everyone's satisfaction.
Freecycle, and reclamation services or local office suppliers may be able to help with solutions for storage/book shelf or shelving units ..
Office furniture reclaimed google search. Add your area onto the search term for more specific results - eg for
Leeds, you could also see what businesses your county.gov.uk website has ..
mobile shelving
The only thing I would possibly ask or add is how parents/famillies are invited into the rooms .. maybe how the office adapts for meetings, visits, dropping children off & picking up, providing information, reception/cloakroom area?
Fab write up, a huge well done
, would be very interested to hear others views ..
Best wishes with it