The Land and Environment Court heard an appeal against the multimillion-dollar Kingscliff police headquarters development in Sydney last week.
A decision on the Marine Parade development is imminent.
Tweed Business and Residents Focus Group (TBRFG) representatives appeared before Justice Peter Biscoe last Thursday after challenging the state approval of the $8 million station.
Critics say the development is too large and out of scale for the residential area and too far away from the highway.
TBRFG vice-president Rory Curtis told media that Justice Biscoe had given his group a fair hearing and reserved his decision, which could take several weeks.
Mr Curtis said residents felt it was the wrong location for the Tweed-Byron Local Area Command headquarters to service the region from the border to Byron.