Light passing through walls 1.
Unity light going through walls.
You have a point light source behind some walls.
If either of these don t solve.
Shadows are the obvious answer however i assume you are using lite and that s not an option.
Here is how to fix it.
Although you have enclosed the light indirect light from the light source seems to seep through especially on the ceiling and the floor.
These options have obvious edge cases that can t be easily resolved.
That s why shadows exist.
Set the point light s baking property to mixed or baked then bake your lighting data using the lighting tab.
Since you re using unity free put the plane on a specific layer.
The layers are the dropdown box in the upper right of the inspector.
Although you have enclosed the light indirect light from the light source seems to seep through especially on the ceiling and the floor.
You can simulate this in shaders or use raycasts to see if the light is behind a wall.
You have a point light source behind some walls.
I am using gaia for the terrain and have the lighting set to afternoon light for those familiar with the program.
Then click on your light click on the culling mask dropdown then uncheck the layer the object is on.
Now the light will not affect the object.
In that case you ll need to be a bit more clever.