Driving (or Taxi) from Bangkok:

Follow Sukhumvit Rd (also is the No. 3 Highway off from Bangkok), pass thru Pattaya Center area, you'll pass Tesco & major shops along the road. Look for the cross street just after "Chaiyaphruek 2 Rd", and before "Pinnacle Grand Jomtien Resort" & "Phattaya 93 Rd". 
Nagawari Village is on the street where has a police station (Na Jomtien Soi 6). Street signs not very clear, but the area is in Zone 5 Na Jomtien – Bang Saray.

Also pay attention to the landmark on your right, just before turning off to the side street from Sukhumvit Rd, it's a Gov't Law & Court building compound with blue color  roofs.