This is going to sound like Fraud 101, but it's actually the situation we find ourselves in. Any ideas?
We live in Lewisham, which is trying to cut down on admissions fraud by people renting houses near good schools, then moving back out after they gain a place. If I understand correctly, if you own and rent in the borough, they'll take your owned address to calculate catchment, ignoring the address you rent in.
I own a flat in the borough, which we don't live in. It's rented out and has been for a while, though I lived there for years before. It is not owned under my name, but in the name of a company. I own that company. (The flat is held in that way as it's an easier, cheaper way to own a BTL.) That flat is in a kind of "black hole" for schools - if our catchment were calculated from there we'd be allocated something OK but not great, quite far away. We rent a larger home in the same borough, which is better located for schools.
So - I understand that if I owned my flat in my own name, the borough would calculate catchment from there, not from where we rent. But does the fact that the flat is owned by a separate entity change things? "I" don't own it, Company X does. We'd prefer to keep arrangements as is, but I don't want to risk a school place over it.