Most players will unlock the Tailor Shop within the first week and a half on their new island. It is entirely random when Mabel visits, therefore it is also random when you will be able to unlock the shop. Mabel should visit once or twice a week, and for her to ask you to help her set up a permanent shop, she must have visited two or three times already. During these visits, you’ll also need to have spent 5,000 Bells at her pop-up shop. The shop can’t be built until
Helping Set Up The Tailor Shop
When Mabel is on your island for the second or third time, she will ask you to help her find a spot for a permanent tailor shop. You won’t need to collect materials for it, as Tom Nook says there’s left over materials from the building of Nook’s Cranny.
When you have placed the shop, it will take two days to be built. So the following day after you’ve chosen a spot, the shop will be under construction.