We moved into our current home in 2013. We have an extension on our house was very badly built before we moved in to the house back in 2006. We have had an architect in recently who gave their professional opinion that the best way forward for us was to demolish the original extension and build again from scratch, which some alterations to the design. We have been quoted in the region of about 120-130K to get this done. However we currently do not have the financial means to get it done with savings. We are currently with Avant mortgages, have about 250K left to pay on our mortgage and the most recent valuation we had on the house was in the region of 600K. What would be the best approach for us to take in terms of taking out a loan for this, its likely that we will have to lend about 80-100K. On of our friends mentioned equity release, maybe re-mortgage, get a loan from the credit union? I'm sure this is a pretty common dilemma is someone has advise it would be much appreciated.