This building was an old warehouse that's been rennovated. The service bay, with brick-built doors, is down a narrow alley. The alley isn't in the best shape (looks like someone has been doing burnouts in the alley as well); the city's budget is stretched so there is no money to repave it. The alley also has two dumpters, which hide the technic connectors used to connect to other modular buildings, pay-phone, utilities control box, and the service bay entrance. The brick-built shutters do close when pushed together.
Around back we have the stairs leading up to the second-floor showroom and the HVAC system that feeds the first-floor service bay. There's also a small patch of wild growth outback with Mickey-the-rat, the shop mascot. The new owners wanted to brick in both sets of windows on the side, but the Fire Marshall said they had to have fire escape access so they left two alone (the fire escape windows are offset in half a stud and align with the vertically-striped interior walls).
The back may look colorful, but when you look at the inside you'll understand why.
If you look in my Flickr Gallery
you will see a side-by-side shot of it as both a regular and corner building. It would take very few modifications to remove the dumpsters and make it a corner building, I would imagine tht the alley would by tiled instead of rough. If approved I would like Lego to include the extra bricks to allow for this; which would make the set much more versatile in how you could use it in your layout. As far as the approximate size and pricing, it should be somewhere between 10218 Pet Shop and 10224 Town Hall, somewhere around $150 USD.