Geez, you lot in NSW are really friendly and nice to foreigners asking for a bit of advice. Not.
What are you? Brexiteers dealing in lies and zenophobia, or just peed-off in the Northern Beaches that Tony Abbott is your local MHR again??
Get real - if you don't want issues with your councils, give people the proper run down at the start.
Claudio,
Don't bother with NSW. The wind there ****e most of the year anyway

. Come to Perth and Western Australia during your time here and kite the usual spots in Perth (Safety Bay, The Pond, Woodman's Point, Cottesloe (Dutchies), Brighton, Mullaloo, Lancelin, Augusta and Margaret River.
Check the WA Kite Surfing Association website for some initial information, and when you get here just drive along the coast checking out the spots.
If you stay in Fremantle you can catch the train to Leighton (North Fremantle station) and Cottesloe (Mosman Park station), or hire a cheap car to get down to August/Margaret River for a weekend, or up to Lancelin for a day
See, not that hard is it NSW?