It costs 50 Cash to buy and takes 8 Energy to build. Once built, it increases the city's population by 3,000 Population. Rent can be collected every 8 hours and earns 390 Coins.
When initially released, this was only available for 24 hours at a varing price of 30, 40, 50, 60, 70 or 90 Cash despite the ingame Announcement stating it was available for 3 days. This was made available again during the second event at it's current fixed price, and is still available.