On one side of a street, the house would be 1 N Graham St, on the other side of the street, it would be 1 NE Graham St.
Needless to say, some confusion occurs. In addition, many times locations are referred to as being on 39th and Graham, for example. So you must specify very carefully that you live at Number 39 Northeast Graham St, "Not 39th and Graham, at the corner of Graham and Williams, on the Northeast side"
It's a bit of a hassle. But a nice neighborhood. My mirror-neighbors kindly forward me packages, and I return the favor. Saves everyone a lot of agony.
(This is leaving aside the area in Portland where, being east of the 'dividing line', but west of the river, the houses are numbered identically except with a leading zero. Many mapping systems truncate this leading zero. Ergo you end up ~15 blocks away)
From 63 NE Graham to 63 N Graham - 0.1 miles - https://goo.gl/maps/xPLNKLzWv652
From 10 SW Boundary St to 010 SW Boundary St - 98 feet - https://goo.gl/maps/FRCXuYKir3M2