Based on square footage, location east of the Willamette, and the fact that he's most likely in an income-restricted place, I suspect this place so far.
Still looking through individual listings, so I might find other contenders.
Edit: another possibility
Edit 2: Found another that works if rounding the square footage, but this one has exact 440 sqft units.
|1B1B 440||1 ba||440 sq ft||$1,250||Available in June 2019|
apartmenthomeliving.com lists it being available on June 12.