The old Taco Bell building along Johnson Drive in Mission is being converted to a Starbucks, but the new store is not likely to open until late next spring. The owner of the building has completed demolition work on the interior. Building permit plans are expected in December, according to the city. The building still needs exterior improvements such as a new roof and architectural finishes. Starbucks is scheduled to get the building in March and then will need to complete tenant finish which could be completed in May.