MARION — The Heron Cove housing project is getting bigger.

The Select Board unanimously endorsed a plan to turn the Heron Cove housing project into a Local Initiative Program development on June 1.

The Local Initiative Program, run by the state, encourages the creation of affordable housing by providing assistance to communities and developers working to create affordable rentals, according to mass.gov.

The updated Heron Cove plan would see an increase of 24 units, from 96 to 120. Additionally, 25% of the units in the development will be rented to people making no more than 80% of the median area income.

The project, developed by Steen Realty, would take up 17 acres on Route 6, near the Wareham Bridge.

Heron Cove put in its own sewer line, stretching from Route 6 to Hill Street, where it would connect with the town’s sewer system.

Plans still need to be approved by government organizations, such as the Department of Housing, before the project can be presented to the Zoning Board of Appeals.