Mailboxes
Can easily stack 3 in that space without the bottom one being too low
Door is wide enough to accommodate packages here at 416
Also cheap, shallow and wide; striking color for some style
Cheap, shallow and wide enough to mount three of these on the street side at 422; also gray
Like the window here and the color matches what 422 will be painted; would be nice at 416 for larger packages, too
Parcel drop
Q