Yes, some are business and residential, others are solely residential. This is just from last night:
Video: https://twitter.com/MrAndyNgo/status/1292359806842331136
"As antifa have taken to Portland residential areas to riot, they’ve also assaulted & intimidated residents there. Tonight, they threatened those who looked out the window."
Video: https://twitter.com/MrAndyNgo/status/1292389122259079169
"Antifa brawl with Portland Police in residential part of SE Portland. The Youth Liberation Front earlier gathered in Laurelhurst Park to practice fighting with shields."
Video: https://twitter.com/MrAndyNgo/status/1292013885495500801
Police need this:

Just so you know, none of these videos appear to be taken in solely residential areas of Portland. Aside from the Peal and the South Portland River Front which both have a proliferation of high rise apartments and condos, most of Portland's truly residential areas are primarily single family homes and apartments c. There very few areas where the street level is commercial and the upper levels residential which appears to be the case in a couple of these videos.
Portland Police Association
1868 N Lombard St, Portland, OR 97209
Lombard St is a main thoroughfare lined mostly with commercial buildings. It is by no stretch of the imagination 'residential'.
Whether the rioters are in a residential area or not, if the are gathered on the streets after 8:00 pm they are breaking the curfew and should be arrested. The group of rioters who tried to set fire to the Portland Police Association building numbered about 20, which is probably less then 10% of the folks protesting peacefully.
Many of the folk rioting and protesting are not Portlanders, but groups of people coming in from all over the country to keep things stirred up.