This is a quick fix for the light bleed that i was having a while ago.
Unity light passing through walls.
Set the point light s baking property to mixed or baked then bake your lighting data using the lighting tab.
By sydon thursday november 2 2017.
How to fix indirect lights seeping through walls.
It s really just a shadow type setting that needs to be set right.
This solution works in other engines like unity and ue4.
In that case you ll need to be a bit more clever.
You can simulate this in shaders or use raycasts to see if the light is behind a wall.
If either of these don t solve.
That s why shadows exist.
These options have obvious edge cases that can t be easily resolved.
Create a unity primitive cube plane etc sized similarly to your wall remove its collider and in the mesh.
Shadows are the obvious answer however i assume you are using lite and that s not an option.
Light passing through walls 1.
Although you have enclosed the light indirect light from the light source seems to seep through especially on the ceiling and the floor.