You go through immigration services for that. Your last papers that came with your card ( if you still have them) will tell you where to go in your area. You can also start the process by mail. You can also go through an immigration lawyer to get it done for you. You will still have to go in for finger printing, but the lawyer will get everything process and guide you through each step.
I strongly dont believe you can go to the. Consulate to renew green care, that place in Hartford, but ii encourage you to check with the post office in your area. They might have something to share , or check with your Mayor's office .
The Consulate is not where you go to renew your green card. Contact the department of Homeland security (DHS).
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