this may seem like a daft question,but in the case of a drawdown mortgage,if the timeframe between two drawdowns increases due to construction delays,this inevitably means the investor will be paying interest on the sum that has been drawn down, for a longer period of time,correct? Is there normally any kind of compensation from the developer or understanding from the lender,with regard to this or is it just hard luck for the investor?

you would have to read your property purchase contract in relation to whether you are entitiled to any compensation for late delivery, many developers try to avoid such clauses, so unless you have requested one up front it is unlikely you will be entitled to any time penalty payment. The lender will insist on any interest due as per any agreement regards Paul