Hey! Just for clarification – by “clean” neighborhoods, do you mean completely empty ones (without premades, townies, etc.)? Those you can find in Pooklet’s thread HERE (”harvested empty neighborhood templates.zip”). That’s the one I downloaded and keep on my computer at all times, just in case. 😀
If you mean cleaned up versions of the Maxis neighborhoods (keeping the premades/hoods intact), I recommended meetmetotheriver’s templates HERE. Meetme also has a neat tutorial for disabling stealth hoods HERE.