Opposing resident, Marilyn Andela, was granted a hearing and expressed concern about the volume of commercial traffic that would use the new entrance, as well as the noise from the operation.
She handed Ms Bray 23 signed letters from 17 residents of Wallace St and six from Dinnis Ave, who feared they would be impacted by the plans.
Concerned Wallace St neighbour Geoff Seerup was one of those who were not served notice about the development as, despite living behind Countdown, was not deemed to be impacted by the development.
Ms Bray granted consent, with a number of conditions, and said the extension would provide for people and their communities' social and economic wellbeing.
She said the non-notification of residents in the area was "not within the scope of the hearing".
Traffic consultant Donald McKenzie and planning consultant for Progressive Jane Douglas had stated that the impact of the work, and extended site, was less than minor for residents.
Commissioner Bray agreed that the lower end of Wallace St, where Age Concern was based, was not strictly residential.
Progressive would address the issue of delivery and waste collection trucks entering the existing site before 7am and noise and after 10pm, which contravened consent, but she said the effects on the traffic network would be less than minor.
Noise barriers would have to be erected on site during construction and the site would have to be fully compliant with a full gamut of planning regulations, she said.