Code:
Seeds range from 5000-5021 (in hex)
 
5000-Town Hall Seed- You know what this does
5001-5008- Neighbors
500a-Post for a villager moving in (i believe)
500b-Gate is used for online/changing flag, etc.
500c-ables sister for patterns
500d, 500e, 500f, 5010- Nooks stores (500d being cranny and 5010 being nookingtons)
5011-Museum
5012-Redd
5013-Katrina
5014-501A-house expansions..(5014 smallest level house, 501A mansion)
501c-bulletin board used for writing post lol..
501e-New Years Sign
5020-Gullivers Space Ship
5021-Gracies Car
I left out a few hexes for certain reasons lol...