The owner of a quarry which has upset neighbours in the Auckland suburb of Mt Eden is seeking permission to fill the site.
Winstone Aggregates intends to cleanfill the Three Kings Quarry site over a period of seven to 12 years.
Quarrying operations at the 15ha site are expected to continue for the next five years, after which time cleanfilling will become the focus.
The company's application for resource consent does not outline any future building or development, but does say the cleanfill works will be completed to a standard, which will allow future development if need be.
Winstone Aggregates was unavailable for comment on Tuesday but the company and some nearby residents have been at odds in recent years over the quarry's operations.
A lobby group set up to protest against the quarry is concerned about the plans.
The Three Kings United Group was set up in 1995 to highlight major concerns surrounding ground subsidence and water contamination at the site.
Its treasurer Austin Bell says their biggest concern is that filling the site will cause further problems with dust in the area.
He says residents are also concerned about a significant increase in truck movements in the area.
The company has applied to the Auckland City Council for resource consent but must also seek approval from the Auckland Regional Council.
The public has until 29 May to make submissions.