I was just wondering if anyone has tried a build based on a map with hallways or corridors separating the rooms?

I recently purchased the Street and Building set and I'm trying to hew as close as possible to a map containing several small buildings within a trading post palisade. One building has five rooms and a hallways--three on one side, two on the other--and its the hallway that's giving me headaches. I generally use Paizo material, and their maps frequently include narrow passages. I don't think it will alter much to use the 3x3 pieces for a hallway, but I had a notion I could they a ledge piece instead. The only problem is that there's no wall piece or door piece that could accommodate the extra square. Has anyone fiddled with the sets and worked out a narrow corridor solution?

This is not to say won't enjoy my sets regardless and buy more, but I cant help but wonder if more narrow terrain will ever be produced in a set down the line, allowing for corridors and winding mazes.