Stonegate has three residents-only (unmanned) gates and one main gate, manned 24-7. What the gates do is called access control, not security. The main gate's primary purpose is the admitting of guests and vendors whose entry into the community has been arranged by Stonegate's residents.

Stonegate has now moved access control into the internet age with the implementation of QuickPass. This new system allows residents with internet computers to instantly communicate with the handheld PDA's used by the gate personnel. Residents also have the option of phoning the gatehouse notify them of future guests and vendors.