no DG units are to passive standard.
may I add that the window installation details (thermal bridging/ insulation overlap), air-tightness, and the overall U-value of the unit that comes with certification is of the utmost importance.
if its a busy road, then for that reason alone, stop messing about and put in the triple glazing. the certification of the passive house institute is by far the best available in ireland.. do insist that your builders use their installation details and get your architect to seek the appropriate guarantees and check the installation details are as good as they can be.