Reviewing these rules would enable lenders to support those with smaller deposits, much as they did 30 years ago. Of course, this still needs to be responsibly underwritten, but a 5% deposit today is usually £15,000+ (compared to £5,000 30 years ago). At the risk of sounding frankly old, most 100% mortgages were underwritten and performed extremely well back then, so we need a proper discussion about this too.