Downtown Port Coquitlam is the city's original commercial centre and still its most walkable neighbourhood. Shaughnessy Street is the main drag — a four-block stretch lined with mostly-low-rise heritage commercial buildings from the 1910s–1930s, independent cafés, the Port Coquitlam Community Centre, Leigh Square (the civic plaza with an outdoor amphitheatre that hosts summer concerts), and a scattering of newer mid-rise condo buildings that have filled in along Shaughnessy and Wilson Avenue over the past decade.

The West Coast Express — the regional commuter rail service — stops at the heritage Port Coquitlam station at the south end of Shaughnessy Street, with five morning departures to Waterfront in downtown Vancouver (about 40 minutes) and five afternoon return trips. That makes Downtown PoCo the only part of the city with rail transit to the downtown Vancouver core, though the limited schedule means it's only useful for commuters with standard business hours. The Coquitlam Central SkyTrain station on the Millennium Line is a 10-minute drive or 15-minute bus ride west — closer than from most other parts of PoCo.

Residential stock is a mix: 1960s–1980s walk-up apartments along Wilson and Mary Hill, 1990s–2000s mid-rise condos closer to Shaughnessy, and a handful of newer townhouse complexes in the surrounding blocks. One-bedroom rentals run $1,500–1,800 for older buildings and $1,900–2,300 for newer; secondary suites in the Mary Hill area are somewhat cheaper. Downtown PoCo is generally the best fit for newcomers wanting a quieter urban feel with a real main street, genuine community anchors, and the cheapest West Coast Express-accessible housing in the Tri-Cities.