Link plugin of bukkit : https://dev.bukkit.org/bukkit-plugins/protectionstones/
ProtectionStones allows a player to place a special block, and this protects their area from griefing.
This allows players to place one of three types of ore blocks to protect their property.
The player doesn’t require any special permissions, they just need to get one of the three following ore blocks which you can give or sell in game using other plugins:
Example ore and area :
Coal Ore gives 11x11x11 protection area.
Lapis Ore gives 21x21x21 protection area.
Diamond Ore gives 41x41x41 protection area.
Because player very easy to use for protection area and property.
Link Clip Protection Stones Video Tutorial : https://www.youtube.com/watch?v=SegnS8jx6f8
