It's unclear whether Janice moved away from the house that the boys grew up in and she'd filled with her hoarding since Season 1 Episode 8, 'Hoarders', but it's very clear that they used a different location for the outside of her house. The address on the original house was 350, and posted above the door. The address on the new house is 1518 and posted vertically on the stair support. It's easy to see the other differences, the color, the driveway, and simply the quality.
(Billy, Jim, and Steve try to figure out what to do with Walter.)
Jim: What if Janice won't take him back?
Steve: I'm sure she will. She probably misses torturing him already.
(Jim and Steve try to figure out what to do about Janice's secret and Walter.)
Steve: We gotta stop him.
Jim: You said we shouldn't tell him!
Steve: No, he's got guns and simmering rage that's been building for decades.
(Jim and Steve talk at a bar about Jim texting Katie.)
Jim: What's wrong with you?
Steve: Georgia and Todd texted behind my back the whole time they were having that affair.
Jim: They had to text behind your back. That's the only way they could have sex behind your back.
(Jim tries to get Walter to move back in.)
Jim: Walter, come stay with us.
Billy: Yeah, Dad.
Walter: No offense guys, but you're all whiny and depressed. You sit around all day playing video games. You look ridiculous. You're all full grown adults for crying out loud. You really gotta get your shit together. I'm better off homeless.
(Jim and Steve stand by yawning and half asleep.)
Jim: We better go home.
Steve: You can't drive?
Janice: Oh, um, Jim you can sleep on the floor, and Steve the couch is all yours.
Steve: (Wakes up) We'll walk. (Starts guiding Jim out) Lets walk.