Concerns are being raised with less than a month before the new school term begins.
Parents are seeking assurances that the works will be completed by then.
Residents in Kilcoole are calling for an explanation from the council as to why the development on the outskirts of the town has come to a standstill.
Cathaoirleach of Greystones Municipal District, councillor Tom Fortune says he will be raising those concerns at a meeting of the council.
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