Ok, large conference centre can be commandeered and bubbles of 15 taught in there. Let's think about the can-do aspects.
We can get all current un-needed furniture in situ (most of it) removed and stored in some outside lock up box bought and delivered to site, manpower to shift it all. This might be something parents or volunteers could help with but risk assessment/legal aspects need to be checked.
We can risk assess safety of all doors and exits and then get the requisite numbers of quotes for installing necessary childproofing throughout the building to the standards of necessary security so the best quote can be selected and the work booked - time and costing needed, plus costings to put right again when building is returned to original use. Possibly the accountability standards of set numbers of quotes could be waived by govt, but finding workmen to do this quickly for many premises may be something to think about.
We can buy all the needed right sized furniture to refit the classrooms, basically desks, chairs, some storage, and get that delivered when suppliers are able to provide this. Things like computer access etc will be needed but basically to just get a teacher in a room with kids on chairs to start with - time and costing needed
We can quote for and install child sized sinks and toilets and ensure the right number for the numbers of children - the adult sized ones are probably going to have to either be taken out and stored for later, or possibly we could get away with massed steps and child seats? Risk assessment involved since this is potentially dodgy- time and costings needed
We can advertise and interview for teachers, and mix and match across the main school site and the commandeered site so children have some familiar faces who know them and ensure enough SLT staff in post on both sites, plus recruit additional admin staff for the new site, then sort the references, DBS, updating safeguarding training and things like EpiPen training, the crucial policies, and set up pay systems to get to a start date and contract - time and costings needed
Play facilities will be needed including safely surrounded outside space for outside time: possibly fencing off half of the car park, however boundaries will need to be secure enough to pass risk assessment, and the pond in the grounds will need to be fenced off and made secure, as will every gate and exit point from the grounds for security , with this undone when the building is returned to use- builder quotes to LA specification (set number required) plus time for work to be done and costings needed
That's about 8 classes accommodated, that's about 1 primary school now sorted on its own site and its overflow site. Now let's start on the village hall.
It could be done: the above is just off the top of my head and school staff would probably think of hundreds more things that would have to go on that list. But really, the costs are...… unimaginable for even one site, and this would need to happen in hundreds and hundreds of them. The time needed to set it all up would be considerable before it could be up and running, and to try and cut any corners would need parents, staff, LA and government to accept normal standards of safeguarding, risk assessment and safety being reduced. And this is just to get kids with a teacher in a room, never mind planning, learning, resources, all the rest of it.
Yes, this pandemic is really shit for children and education, it's beyond frustrating. There aren't any easy answers.