A year on since the former tax office building on Sullivan's Quay was demolished, work has begun to remove the rubble from the site on Sullivan’s Quay.
The mound of construction rubble at the site had attracted criticism with demands it be removed.
Developers Bam has planning permission for a large hotel and office development on the site.
Workers were spotted on site last week removing the rubble.
In 2008, the Revenue Commissioners sold their former offices and moved to new premises in Blackpool on Assumption Road.
The building was subsequently used by arts students from the Crawford College and as a gallery space before demolition work finally began in March of last year. At the start of May, demolition was completed.
A 220-bed hotel is proposed for the site in a 12-storey cylindrical tower but construction has yet to begin.
Lord Mayor of Cork, Councillor Mick Finn told The Echo it was about time the developers removed the rubble pile.
“It had become an unsightly site in a short space of time and no developer, company or property owner should be able to sit on sites and just ignore what needs to be done”, Mr Finn told The Echo.
BAM Constructors were contacted to ask for a timeframe before the rubble would be cleared but did not respond.