A Complying Development Certificate may be issued for your balcony, deck, patio, pergola, terrace or veranda for land zoned R1, R2, R3, R4 or RU5 if the proposal meets all of the relevant development standards.
You can use the State Environmental Planning Policy (SEPP) to check whether your proposal is complying development. The individual clause should be read in conjunction with the Part.
If your proposal does not meet all of the standards you must lodge a Development Application.