Great work It's neat to see such a focus on a real city - it adds a little bit of extra interest without getting in the way of what's really quite a pleasant strategy game (on Normal, at least - I never had more than one or two buildings short on water so I'm curious to see how much the challenge ramps up on higher difficulties).
I'd also be interested to see a sort button for the various storerooms. I would have liked to keep the gift/donation cards separate to the plans and materials, for example.