Should building interiors be in separate scenes in Unity?

I have an overworld with multiple buildings in it. Each building has a separate interior model with ~500 triangles. I was wondering if it would be better for performance to store the interiors in the same scene, and teleport the player to them, or if I should make a new scene for each interior and load that when a player enters the building?

Each have their own drawbacks and challenges, so I was wondering what the general consensus was about the topic.