Gday all! Mum's doing some improvements to her backyard and is hearing many different things when talking to people, so thought I'd ask here. House is located in The Hills Shire Council, NSW. Situation - There was an existing pebblestone verandah with verandah awning over it (original). Mum wanted to remove the existing awning, then to concrete over the existing pebblestone verandah and extend the verandah out 1m further into the backyard, then have the new awning built over the new verandah. After the existing awning was removed, Mum selected a concretor who did the work but ended up doing a dodgy job (Mum didn't do her research this time round and it ended up he wasn't licensed!). New verandah was too high and was pushing against the house, which as per 3 builders reports, would cause major damage to the house. Mum had the concrete cut up and removed; however, in the process, the workman cutting up the new concrete verandah cut through the old, existing pebblestone verandah also. Because of all the hassles with concreting, Mum has now decided to go with decking instead and has started getting work done to put the decking in (drainage under the decking, removing of soil, etc). Now this is where I'm asking questions. Our neighbour, who is also a builder, has told Mum that she will need to goto council and have it council approved. I'm know very little about this area, but would decking require a council DA approval? And would the extension of the old awning (that has now been removed) require a council DA approval? I'm thinking it would, but thought I'd check in. Mum went to council and they couldn't give her an answer, but they told her it may be able to go under the SEPP for Complying or Exempt Development. Any assistance is appreciated.