to find large spaces to hold schools in that mean they can be socially distanced and/or in rotas?
Surely?
My DCs' schools are quite close together (primary but two different schools) and one is opposite a closed (well, distance learning) college. There are 2 secondary schools within walking distance and you could easily fit all of the primary years 4-6 plus half of the secondary schools into the college classrooms at 15 per regular sized classroom (or a whole class of 30 in a lecture hall).
Then the remaining pupils could socially distance and years R-3 could split into half sized groups (given we don't think they are very infectious but they are poorer at socially distancing and more likely to run riot on a college campus/break a village hall).
It would require the DfE to get their act together and provide:
Individual technology for the secondary school pupils and a classroom setup for the primary teachers plus portable equipment for the primary teachers.
Minibuses from each village/town area for each year (e.g. you'd have Year 7 Lower Wallop bus and Year 8 Hill Estate Bus) that serves the secondary school pupils (to get them to the college without being together on a bus and IMPORTANTLY to get them home again without congregating all together in town.)
DBS checks for all maintenance/caretaking staff on the college campus and in any other halls used.
Weekly PCR tests for all staff and ditto all secondary school pupils unless exempt.
Employing a full time TA per primary class of 30 so that half of them could have the TA and half the teacher and then swap over.
Mobile connections for all secondary pupils (where it's not e.g. a college) and for primary teachers' equipment.
What else have I forgotten that is actually just a matter of money not impossibility?
The primary school my DD is in also has 2 church halls in walking distance and there are others around and about.
I know not ALL schools could use other halls but surely it's better to send SOME children back rather than NO children back?