The station and its lines were taken over by the Ulster Transport Authority in 1948, who then set about closing large portions of the County Down network.

This left Queen's Quay for the remainder of its years as a fairly quiet terminus for the suburban services to and from Bangor.

The site itself is mostly buried under the embankment for the M3 flyover, with only a small section of ground used as a tram stop for the station remaining open, now in use as a car park beside the motorway.

At its peak, services ran to Comber (where passengers would change for trains to Ardglass, Downpatrick and Newcastle), Donaghadee, and Bangor.

Following takeover and subsequent rationalisation by the UTA, this left only the services to Bangor operating into the NIR era, until the station was closed in 1976.