An "outlet" (at least in AE) is a store that sells retail goods, especially if the goods are discounted in price for some reason.
A bank would have "branches".
KFC might have a "branch", or a "franchise", or "restaurant".
Unless the Gucci establishment sold last year's shoes at lower prices, I would say "a Gucci shop" or "a Gucci store."
A previous thread shows agreement with GreenWhiteBlue.
In addition to a discount shop or store, the term is used as part of the phrase
"retail outlet" to indicate any retail sales location.
Here are a few examples of that usage:
Purchasing Tickets Through Retail Outlets
You can purchase your Heaven's Rehearsal ticket from a REAL PERSON at all Ticketmaster Outlets using cash, cheque or credit card. Just follow the simple instructions below to find a Ticketmaster Retail Outlet close to you.