Deville Estate Agency Home ›› Local Listings ›› NSW ›› Castle Hill ›› Deville Estate Agency NSW Real Estate Castle Hill, NSW 2154 Sam Khalil02 9680 9986Mobile: 0296809986https://www.deville.net.au In and around Castle Hill the foundation of our Real Estate Agent’s 'success system' is a philosophical shift from being a 'facilitator' presenting to a Real Estate Consumer to becoming a 'catalyst' for a Real Estate Client to find success in an industry that for decades has been inefficient and often ineffective.