Township, state, and federal officials demand environmental review for former warehouse. Protestors voiced their opposition to the proposed conversion of a Roxbury warehouse into an ICE detention center. (DOVERNOW.com photo/Karen Fucito) The proposed use of a 470,000-square-foot Roxbury Township warehouse by the Department of Homeland Security for an ICE facility has been put on hold pending a review of the environmental impact of housing up to 1,500 detainees in the region.