Bang Chak is between On Nut and Punnawithi towards the eastern end of the BTS Sukhumvit Line. It is slowly being developed but not as fast as its neighbours.
The area has a large fresh market and many local shops of all descriptions. Travel to the more developed On Nut area is easy, just one stop on the BTS or a 12 - 15 minute walk. The distance between the BTS stations is only 950 m.