November 2005.25 euro per month per 100,000 borrowings on a 30 year mortgage is the additional cost of a .5% interest rate rise.Our average mortgage is 250k so a half % increase will increase repayments by 62.5 euro.A 1%rise will push the repayments up by 125 per month. With interest rates likely to rise in 2006 one must factor these potential changes into account when looking at borrowing levels.