Can't destroy placed blocks

I think the server should have a plugin where other players cannot destroy a player's house/creation.I would appreciate it if you added that

Yes i have looked into somehting exactly like this and have tried it out on a test server on my computer already, however it was so out-of-date it didn't work right and it created tons of severe errors, HOWEVER i will still continue to try and find one as i want to eventually phase out factions as well because i think it's a really shitty system and it gives people an excuse to grief, which its against the rules btw, also another problem i had with this was the inability to trust people so you can co-build.

I know a server that have the plugin that if a player put a block, other player can't destroy it