via @simproved@twitter.com:
"Simmers from all around the world created a magical #TheSims4 save file for you!

#HarryPotterWorld let's you explore the Wizarding World of Harry Potter and tell your own magical stories.

DOWNLOAD>> http://simfileshare.net/folder/123691/ "

I build Beautifing Potions Lot in Diagon Alley and added some Sims as well.

#JourneytoHarryPotterWorld #sims4

(there have not been any restrictions in usage of all the packs, so you need many of them, or time and joy in fixing what's missing)