As Legacy mentioned, Spawning and Havoc were literally the same law-out. But they felt like completely different experiences going through them (one very good, one not so much).
At the same time, despite using a mix of different sets, Halloween 4 felt like a rehash of at least ten recent houses. I think the set dressing and the costumes and creative arrangement can overcome the feeling of sameness that comes with reusing props. Tho after 18 years, yeah, the tunnel, e.g., if always going to be instantly recognizable. Slant floor probably in that category now too.