It is possible, but you will need your conveyancer to work with your IP, as there will be a restriction on the title. The equity will first be applied to your IVA up to the amount of the remaining full debt and fees, which could, according to the figures, eat all of the proceeds.
Another way to approach this is to speak to your IP offering
to sell the property in order to make a full and final offer to cover the remaining payments stipulating that, if the offer is rejected, you will not sell. Unfortunately, with only a year to run, this offer might not appear too attractive to creditors and they might just want to let the IVA run. --- It could take 2 or 3 months for the offer to get put to creditors and then, they would have to wait for the house to actually sell and then another 3 months in the conveyancing process ---- it could well be a very expensive way for you to save a month or two in the end.
You could, possibly, raise a secured loan on the property to cover the remaining payments --- which would be at higher rates right now, but you could refinance, at better rates, that when the IVA clears your credit records.
I believe one of our members, Shaun, a whole of market broker, has dealt with this scenario before. His contact details are in his profile page here: memberlist.php?mode=viewprofile&u=22837
We do have another whole of market broker, in the form of Ryan. I am not sure if they also do these 'early exit loans', but worth an ask: His details are at: memberlist.php?mode=viewprofile&u=18488