Lawsuit says the borough is not enforcing rules on building affordable housing alongside market-rate units.

EDGEWATER – A housing advocacy group has sued the borough, claiming it has let a developer ignore affordable housing rules during the construction of several residential buildings along the Hudson River.

The suit was filed in state Superior Court by the Fair Share Housing Center in May. It claims the firm, iPark Edgewater LLC, is violating state housing regulations and a borough redevelopment plan by building 584 market-rate units at a River Road development before it begins building 75 promised affordable housing units.

According to regulations from the state Council on Affordable Housing, the two must be built concurrently to guarantee developers follow through on their projects’ affordable housing component, the suit said. But the only residential piece not yet begun is the affordable housing building, the suit said.

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The suit also claims the borough has continued issuing building permits, as well as certificates of occupancy for 178 finished market-rate units, despite knowing about the violations since January.

“The borough isn’t taking the proper enforcement action – what they should be doing is holding the developer’s feet to the fire and saying, ‘We’re not going to issue any [certificates of occupancy] until you do what you’re supposed to be doing,’ ” said Anthony Campisi, spokesman for the housing center.

The center is seeking a court order blocking the borough from issuing occupancy certificates for non-affordable housing units, as well as a mandate that any construction related to non-affordable housing cease.