Walgreens has done a historic building retrofit in Chicago.
http://blog.chicagoarchitecture.info/201...nside-historic-noel-state-bank-building/
Last fall while in Chicago I happened into the Walgreens at the Noel State Bank without knowing that it was anything other than an ordinary Walgreens. If their execution is at the Olympia building anything close to the quality of their work at the Noel State Bank Building this will be a great addition.