Grady Health Systems is proposing a $165 million expansion that would add a seven-story surgery center to its main campus and increase its capacity at a center on Ponce de Leon Avenue that treats HIV and AIDS.

The proposal is in its early stages, but a timeline for the project says it could be completed in three and a half years.

Around 650,000 people visit the hospital every year, many in the trauma center.

The hospital system is seeking half the money to pay for the expansion from Fulton and DeKalb counties, while the remainder would come from philanthropic and other private sources, according to a presentation to county leaders.

The project would add operating and recovery rooms and allow more space for in-patient beds. The current operating rooms are at capacity, according to the presentation.

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