1) No destroying anybody else's buildings without their permission, period. If by accident you destroy a block that is a part of a building you should replace it.
2)No building within the sight of The City, unless it is The City itself.
3)No City building is to be higher than the light of The Lighthouse.
4)No building over another player's building.
5)No building directly under another player's building without their permission.
6)If you take on a community building project, then please finish it before beginning your own private house or Wilderness constructions.
7)No private slip gates within The City
8)No mining directly below The City, and only via the main Mine Entrance's shaft.
9)No building with bedrock
10)When inviting somebody to join the server, always refer them to this thread!
11) Each citizen is allowed to build one house in The City and any community project they successfully pitch for.