You upgrade Nook's store by purchasing and/or paying your mortgage.
There are four stores in all:
Each store has a certain amount of money that you need to upgrade it.
So there's is the amount of money you need to spend in order to upgrade each store. For me it was a lot easier just paying off my mortgages one at a time. Usually this method works.
You have to spend a certain amount of money at Tom Nook's store. As you buy more items, spending money at his store, you need to spend more and more each time you upgrade to upgrade to the next level.
Levels:
Nook's Cranny
Nook 'N' Go
Nookway
Nookington's (Wild World and City Folk)
You upgrade Tom Nook's shop by buying lots of things. To get the final upgrade a visitor needs to buy something.
If you have Nook's Cranny ( the shop you start off with ) you will upgrade by spending 25,000 bells and then you will have Nook 'n' Go. After spending 90,000 bells at Nook 'n' go you will upgrade to Nookway. To upgrade to the last version of Nook's store Nookingtons you have to spend 250,000 bells and have had a friend shop from one of Nook's stores. I won't give away anything but it's worth getting Nookingtons. You will know when your store is going to upgrade because a notice will come on the bulletin board and Tom Nook will tell you. He will close his shop for one day and then the next day her will re-open with your new shop. Nookingtons has a hair salon, two storys and three new people working in his shop.
By getting enough points and purchasing things
you have to keep playing for sometime, and eventually the store will upgrade. It took me at least a year to get it's fully upgraded and i play a lot
just spend loads of money in nooks and he will upgrade
No, there's one in the city!
nerd
tom nooks store should evole in every animal crossing game. it goes from nooks cranny to nookway to nook n' go to finally nookingtons.
the answers vary
No. They come at random times.
it is in tom nooks store on a random day
Nope.. I've tried
you go to toom nooks store in january 3 in the therd il
In nooks store. Check everyday and it'll randomly be on sale.
All you have to do is keep selling and buying things from the store until nook tells you that they are upgrading!
Yes, You will have the mansion but your roof will automatically be whichever colour that is in nooks store.