How long ago did he move out of the house, OP?
imho, you insisting on one year is too long. You both have to plan for future, no one stays in a loved home forever.
IN reality, you'll probably get one year because there are So Many things you need to do.
Assuming you are in England, you can start the paperwork yourself, and file a notice that you intend to divorce for ... I think the fee is £593 and you both fill out the form yourselves without solicitor if you are amicable. That form is long & you have to agree on it, plus it has a many months cooling off period before you can progress to next round of forms, I think it might be something like 24 weeks. You will start discussing all of the financial split at this point, pensions, assets, valuable objects, savings funds, investment funds, cars, pets, shared obligations if any dependents and ... property.
Most couples squabble so much at this point that they get to the end of cooling off period and STILL haven't agreed on a fair division. Then there are other sequences of paperwork and waiting periods that you have to do before you can get divorced and get to a final consent order which is the penultimate document before you get divorced.
I'd start discussing the forms now. Get it filed before you discuss specific money decisions. Treat the process as a series of hurdles and no point looking beyond the next hurdle each time.