Post Office Annex

Post Office Annex

Union Station Office Center is part of the exciting $135 million St. Louis Union Station redevelopment project. Balke Brown Transwestern ensured that the centers buildings subtly incorporated the area's historically significant roots while updating it into a contemporary urban setting.

Post Office Annex is one of three office redevelopments completed by Balke Brown Transwestern at Union Station Office Park and consist of 3-stories and 39,648 square feet.

Year Completed


Square Footage



Post Office Annex

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