Go to level one of Fusionopolis via exit C, cross the street (Ayer Rajah Avenue) & locate Block 71.
one north MRT Station
Circle Line, Entrance/Exit C
Take the exit towards North Buona Vista Road, turn right onto Ayer Rajah Avenue. Then turn right onto Ayer Rajah Crescent & another right turn at the second car park entrance. Block 71 is on your right.