You owe 250K on a sale price of 360k so you have £110k equity in the home if it sells at that price.
How much you need/want to borrow, LTV etc is up to you. If you only want to borrow £350k, use all of it. If you can get a 90% mortgage, pass affordability etc, then £46k and borrow £416k. Or anywhere in between.
If you want to move mortgage providers instead of porting with your current provider there may be extra charges for things like paying off mortgage early, depending on your terms
You owe 250K on a sale price of 360k so you have £110k equity in the home if it sells at that price.
How much you need/want to borrow, LTV etc is up to you. If you only want to borrow £350k, use all of it. If you can get a 90% mortgage, pass affordability etc, then £46k and borrow £416k. Or anywhere in between.
If you want to move mortgage providers instead of porting with your current provider there may be extra charges for things like paying off mortgage early, depending on your terms