Re: Covert attic or pay off part of mortgage with SSIA?
Bear in mind a converted attic will often not qualify as a room because of low average ceiling height and emergency exit issues. As such, the house may not subsequently be sold as a four-bed house. And if you lose space from the boxroom, you may actually convert your 3-bed house into a two-bedroom-and-a-small-cot house. Generally, good attic conversions are sold with beds in them to illustrate that they are serviceable, but without certification as a room they won't add serious value. You should have this checked: if you have a sufficiently high roof, you may get lucky and it might qualify legally as a room if carefully converted. If it doesn't, then a straight cost benefit analysis would suggest you're better off paying a lump sum from the mortgage... but if this is your long term house, will you care?? Your real question should be "Is it worth it to us, for the way we live in the house and the time we plan to be here?" - and only you can answer that!