Actually, the location wasn't a giveaway on her character at all, because the refurbishing of the inside was pretty much done (as was the exterior--it was just the engine that was shot and awaiting work when time allowed), and the shed was the best location in that area that gave a little privacy from her parents, while also protecting us from the weather. No, it wasn't dusty--the shed was a finished, lit, heated, workshop type building.
Believe me, when the movie Titanic came out, and Leo and Kate got it on in the car with the palm prints against the steamed up back window, I definitely had some deja vu...