Please search next time before posting. We have two threads to help answer this question.
Teleport & LoS the second is
blue gremlin & teleport.
Can I teleport something through a wall?
Does it depent on which side I start the teleportation?
TeleportingTeleporting is an effect that moves a creature directly from one zone to another.
The teleported creature does not move through any zones in between, and bypasses all walls, creatures, and objects along its route. Everything that is attached to the teleported creature, except conjurations, including all conditions, damage, enchantments, equipment, and mana, always moves with the teleported creature to its new zone. Any attached conjurations do not move with the creature when it teleports, and are destroyed. In this way, a creature can effectively escape from conjurations like Tanglevine. A creature may teleport into the same zone it started in (effectively teleporting zero zones) to escape from attached conjurations. Unlike a Push, teleporting can affect Unmovable creatures.
So it would be correct to say you can teleport a creature past a wall but not through it. Also in order to do this you would need LOS to both the Creatures Zone and the intended zone if using the Teleport spell.
It only Matters that the mage Has LoS to the Creature and the Destination Zone. The Teleported creature could have three sides of its zone walled off, but there would stil be at least two other zones that would have a LoS to that Zone. The wizard casting Teleport would have to be in one of those zones to move that Creature.
Hedge