The 600-square-foot addition will be built on the east side of the structure, which Starbucks shares with Potbelly Sandwich Works. An access road will go in behind the building.
Rick Schroeder, vice president of construction at Robert Muir Company, said the work could potentially start this year, but it's looking more like the spring of 2014, with work completed in August of that year.
Councilman Paul Rebholz asked staff to ensure there won’t be issues with cars and pedestrians, and the area will have signage and pavement markings.
Brix Coffee also has a drive-thru.
Starbucks is located at 7230 Valley Creek Plaza.