Buying south of France - 1 to 2 hours from Nice Airport

Just wondering about property on the south of France. Obviously around the Cap Antibes the price is high but how about 1 to 2 hours drive from Nice Airport. Are there any pitfalls into buying property around the Cote D'Azur? If I see a property on Rightmove? what extras need to be paid? I know italy charge something like 10% extra for foreigners.

Any info is much appreciated.