The Target store at Roselands will stay open for now.
A spokeswoman said no announcements had been made about the future of the Target Roselands store, which "remains trading as Target".
It comes after the Leader reported last week that the Target store at Miranda would close and the premises converted into a Kmart store.
Both Target and Kmart are owned by Wesfarmers.
A Kmart spokeswoman said a decision to close the Miranda store was made last year and staff advised in November.
She said conversion works would begin in March.
"Our teams will be busy transforming the store after that. We can't wait to bring it to life and to share it with the local community," she said.
"Kmart Miranda [will] be officially opening their doors to the community in April."
Target announced in May last year that it would be closing many of its stores permanently and converting others to Kmart stores in a business update posted on its website.
At the time, a business update posted on the Target website said a number of stores would be leaving "the Target family". It included a list of stores to either permanently close or be converted. Neither Miranda or Roselands were on that list.
The Miranda store was quietly added since then.
Neither Target or its parent company Wesfarmers had made an official announcement about the extra closures.
"When we announced the store changes to the Target network in May 2020 it was announced that between 10 and 40 Target large format stores were converting to Kmart subject to landlord negotiations," the spokeswoman said.
She said she would not confirm staff retention and recruitment numbers for the Miranda Target store "at this stage", but all team members had been offered the opportunity to join the Kmart family.
Target's business update said: "You may have heard about changes that have been announced regarding the future of Target.
"As a result of these changes, a number of our stores will be leaving the Target family.
"Some of these stores will be converting to Kmart and, sadly, some will be closing."
"We understand these closures will affect a lot of people in the Target community and we appreciate your patience and understanding during these challenging times.
"We are committed to providing every opportunity for redeployment for our team members who will be affected by these changes.
"We are proud to have a rich history as an Australian company and we are committed to serving you, our valued customers, now and into the future."
A post on the Wesfarmers website in May said it had announced significant changes to the Target and Kmart store networks "with the aim of making Target more commercially viable".
"A number of actions will be taken over the next year to address the unsustainable financial performance of Target and accelerate the growth of Kmart, including the conversion of a number of Targets to Kmart stores and the closure of Target stores not suited for conversion," the post said.
"Since announcing this change, Wesfarmers and Kmart Group have received many messages of concern but also recognition that businesses need to be sustainable in the long term.
"Target has struggled for many years and has incurred very significant losses. In its current form, it is not viable. Its costs are too high, including the cost of operating and supplying a large network of physical stores in regional Australia of varying sizes stocking varying ranges.
"Over the last decade, Target has also faced significant competition from new international retailers, online retailers and other department stores, including Kmart which has been a disrupter itself in this sector.
"Within Wesfarmers, we have made every effort to find a sustainable path forward for Target. However, it is now impossible to continue to run Target at the current size."