Perfect for near a pool or outdoor shower. Bathroom idea (guess this is really for a Lake House) but I LOVE the idea. I would have put the mounting braces further apart to give more towel bar room but other than that, I really love this idea!
Bike Shed *incorrect link* A similar lean-to, one completely enclosed to match the home exterior, would be perfect on the garage wall. If it were accessed from inside the garage only, it would be harder to steal + less likely to rust.