Minimum size of a city is 3 residents, if you don't have that, you really don't have a city. We will charge 1 diamondblock (db) per resident, up to a max of 10 (so 10 and over, still only costs 10 db). The mod doing the cuboid will examine the town, so if you say you only have 3 residents, and we see 20 buildings up, with 10 different names on them, you'll get the 10db cost. Lying to a mod about it will get you banned.
The city cuboid also comes with a hospital if you choose to want it, we'll need a 17x17 plot, and to get that, send a PM to wokka. The mods cannot place a hospital.
Your city will need to have clearly defined borders, we prefer walls. If you are nearby someone elsees house and its not square, we may not be able to cuboid the whole city, or maybe will have to do multiple cuboids (no extra fee), but try to have a square setup for us, it makes it much easier.
For the resident plots, you determine through your city rules if they can go down to bedrock, down 10 blocks, etc, also building restrictions on how high. We'll set their cuboids up accordingly. Cuboid names will be in the format of CityName_PlayerName. The city cuboid will come with the standard settings, creeper deny, vehicle use, etc. That inherits down to the player cuboids inside. Also, owners of the town that are on the city cuboid will also inherit down, we cannot change this behavior. Your city rules should show that a city owner can change indivduals plots as needed.
If 10db is too clostly for your big city, take up donations or charge your residents a fee to cover it. Protecting your city with a cuboid will help you and your residents with fighting griefing, and it will also keep your residents from building outside of their plot. Resizing or expanding your city cuboid will be handled on a case-by-case basis, up to the mod on how much work it will be to redefine your cuboid, they may charge you for this. So please ask.
So, in summary:
3 Residents = 3 db
8 Residents = 8 db
10 Residents = 10 db
30 Residents = 10 db
2 Residents = no city cuboid
Let me know if you have any questions.
FAQs