I am trying to install one camera on the back of row/townhouse:

Somebody can walk under the deck from another unit. Only way to the first floor is through the stairs.
My idea was to install one wideangle camera under the deck, covering the two windows and the stairs.
I though that I could install a compact dome such as a Hikvision on the left window on the white window trim. Maybe 2 feet above ground in order to capture a face of someone walking up the stairs.
Bad/good idea? What other options could I consider?

Somebody can walk under the deck from another unit. Only way to the first floor is through the stairs.
My idea was to install one wideangle camera under the deck, covering the two windows and the stairs.
I though that I could install a compact dome such as a Hikvision on the left window on the white window trim. Maybe 2 feet above ground in order to capture a face of someone walking up the stairs.
Bad/good idea? What other options could I consider?