园区 is the modern Chinese word for the kind of large, fenced corporate or industrial 'park' that now anchors most cities. Common collocations:
工业园区 (industrial park),
高新园区 (high-tech park),
科技园区 (science park),
创业园区 (startup incubator zone),
物流园区 (logistics park). It almost always implies a planned, large-scale development — not a leafy
公园 (gōngyuán, recreation park).