Found this on the internet under Council Tax Exempt Dwellings class G.
We have been ordered and instructed by the government to stay home and ideally not move house
COUNCIL TAX, ENGLAND AND WALES
The Council Tax (Exempt Dwellings) Order 1992
Made 9th March 1992------ Laid before Parliament 10th March 1992---- Coming into force 31st March 1992
an unoccupied dwelling the occupation of which is prohibited by law, or which is kept unoccupied by reason of action taken under powers conferred by or under any Act of Parliament, with a view to prohibiting its occupation or to acquiring it;
When am I allowed to leave the house?
You should only leave the house for very limited purposes:
shopping for basic necessities, for example food and medicine, which must be as infrequent as possible
one form of exercise a day, for example a run, walk, or cycle - alone or with members of your household
any medical need, including to donate blood, avoid or escape risk of injury or harm, or to provide care or to help a vulnerable person
travelling for work purposes, but only where you cannot work from home
Can I move house?
Homebuyers and renters should, where possible, delay moving to a new house while measures are in place to fight coronavirus.