Padappai is a residential town situated near Bay of Bengal in Chennai. Ambattur, Thrinindravur, Ponneri etc. are the nearby cities to Padappai. It is 13 kilometre away from the highway connecting Tambaram and Bengaluru. The nearby villages of Padappai consist of Athanancherry, Kunnavakkam, Vanchuvancherry, Sirumathur, Panapakkam, Ezhichur, Umaianparangcherry, Nariyampakkam, Vattambakkam, Cherrappanancherry, Karasangal, Uthukkadu, Eraiyur, Oragadam, Pandruti, Aarambakkam, Mettupalayam, Devariyampakkam, Dembakkam, Thalampattu, Eraiyamangalam, Aloor, Vaipur, Samadhuvapuram, Mannivakkam and Salamangalam.

Connectivity
Padappai Road connects Walajabad to Vandalur via Oragadam. It also connects Chennai to Kanchipuram. Padappai Road can be taken from Kanchipuram to reach Chennai instead of using NH- 4. Padappai can be reached via rail and road. The major station of Chennai, which is Chennai Central Railway Station lies near Padappai. Chennai Park Railway Station, Basin Bridge Junction Railway Station and Chennai Fort Railway Station are just a kilometre away. Padappai has a number of buses that ply here. TNCF Bus Station, Central Bus Station, Moore Bus Station, Choolai PO Bus Station, Regal Bus Station etc are the nearby bus station. Padappai and Chennai International Airport lie at a distance of only 18 kilometres.

Real Estate
Padappai is rich in terms of residential sites. Real estate in Padappai has 40 projects, which are a mix of ready-to-move-in and under-construction.

Social Infrastructure
The social infrastructure of Padappai is quite rich as there are various colleges in and around it including Jayagovind Hari Gopal Agarwal Agarsen College, Government Technical Training Centre, Bharath Institute of Science and Technology, SRM University, Presidency College etc. along with schools including Sunshine Academy, Vatsalya Mat. Hr. Sec. School, Grace MHSS, and Sri BKM Kothari College.
The nearby hospitals of Padappai include Apollo Hospital, Noble Hospital, National Hospital, VS Hospital & Madras Cancer Institute, and Institute of Child Health.
The area also has a number of banks that have branches here. This includes HDFC, Indian Overseas Bank, Indian Bank etc.