Rancho Cucamonga is building its first-ever real downtown — and most people don't even know it's happening yet. 👀 The HART District. A brand new walkable, mixed-use urban zone surrounding the future Cucamonga Station — which will connect Metrolink, Brightline West high-speed rail, a planned underground tunnel to Ontario Airport, and bus rapid transit all in one place. Housing. Dining. Shopping. Hotels. Jobs. A real walkable urban core coming to one of the most desirable cities in the Inland Emp