you guys should make a rule that if somebody is annoying you by getting in your way interfering while building and constantly entering your house without permission should be sent to jail or banned for a period of time.
anyone is allowed in your house...You get your things protected by mods/admins so they cant take anything. If you dont want anyone in your house use iron doors and levers. For the getting in your way while building that is already in the rules as common sense. If people do annoy users they will be asked to stop.. then jailed/tempban if continued