Poison Arrow pointing towards house?

[myfs_101919]

Hi,
Although our house is not located on a T-junction with a road, we were told that there could be a poison arrow pointing towards our house.
Opposite our house is a block of houses that points to our house. Behind these houses, there is a small alley. This alley gives entry to the back of the gardens for these block of houses. However the alley ends at the first house in the corner.
So, if you would walk though the alley towards our home you would end up at the garden of the corner house and then there is a tree before you would even see the front of our house.
Would you consider this alley to be a poison arrow that points to our home?
See attached document for an illustration of the situation I described above.
Kind regards,
Heroe Kang