Trinity Mills Station: How Carrollton's $500M+ Transit-Oriented Development is Reshaping the City

Trinity Mills Station represents the largest publicly owned TOD in North Texas. Here's what it means for Carrollton's future.

Modern public transit train at platform in urban development area

Trinity Mills Station represents a rare convergence of regional transit investment, local real estate development, and forward-thinking city planning. When completed, the 25-acre transit-oriented development will stand as the largest publicly owned TOD in North Texas—a distinction that carries both practical implications and symbolic weight for Carrollton’s positioning as a modern, growth-oriented city.

To understand why Trinity Mills matters, it’s important to first understand what transit-oriented development actually accomplishes and why cities pursue it.

What Makes TOD Different

Transit-oriented development operates on a simple logic: if you concentrate housing, retail, and services around a transit station, you create a district where people can live, work, shop, and access regional destinations without requiring a car for every trip. This reduces traffic congestion, lowers the cost of living for residents, and makes transit systems financially viable by ensuring that stations are surrounded by enough activity to fill trains consistently.

The best TOD examples in the United States—parts of Arlington, Denver’s Union Station district, Houston’s Uptown—demonstrate that this approach works. People will move to walkable, transit-connected neighborhoods if the residential offerings are appealing and the transit access is genuine.

Carrollton’s Trinity Mills Station development is designed with this framework in mind, with two major transit connections amplifying its significance.

The DART Green Line Connection

The Dallas Area Rapid Transit Green Line, which serves downtown Dallas and extends to areas like Walnut Hill and Love Field, stops at Trinity Mills Station. This single-seat ride to downtown Dallas means that residents and workers at Trinity Mills can access employment, dining, entertainment, and services across a much wider geographic area without operating a personal vehicle.

For commuters working downtown or in the central Dallas business core, living at Trinity Mills eliminates the daily drive while providing significantly more housing choice than living within walking distance of downtown itself. This has real financial benefits—a person working downtown who moves to Trinity Mills eliminates roughly 20 miles of daily commuting while potentially living in a newer apartment with modern amenities.

The DCTA A-Line Addition

The Denton County Transportation Authority’s A-Line commuter rail runs through Carrollton and connects to Trinity Mills Station. This connection extends the development’s reach further north, enabling access to employment centers in Denton, Lewisville, and the Denton County commercial corridor. The dual transit access—DART Green Line to the south and DCTA A-Line to the north—creates a genuinely regional asset rather than just a local convenience.

Few suburban transit stations in North Texas have dual light rail/commuter rail service at this scale. It’s an advantage that fundamentally changes Trinity Mills’ market position and appeal.

EVIVA Trinity Mills: The Residential Core

The centerpiece of the development is EVIVA Trinity Mills, a residential complex containing over 430 apartments across multiple buildings. The name deliberately suggests the Spanish word for “live well,” a branding choice that signals the developer’s positioning of this as not just housing but a lifestyle destination.

EVIVA’s unit mix includes studios, one-bedroom, two-bedroom, and premium units. Amenities are substantial: fitness center, pool, co-working spaces, dog parks, and the kind of communal courtyard architecture that attempts to foster a sense of community beyond just individual apartment units. The finishes in newer units reflect market-rate apartment construction—vinyl plank or wood-grain flooring, gray cabinetry, stainless appliances—consistent with modern apartment development standards across DFW.

What distinguishes EVIVA isn’t necessarily luxury but rather connectivity. Residents can walk to the DART and DCTA stations without weather-dependent constraints (covered walkways exist for rainy days). Ground-floor retail is planned as part of the development, intended to create a neighborhood service hub where residents can handle basic retail and dining needs without requiring vehicles.

The Broader 25-Acre Site Plan

The development isn’t just residential. The larger Trinity Mills Station site includes office space, additional retail components, and what’s being called the “Town Center”—a community gathering space designed with flexible uses in mind. This mixed-use approach mirrors successful TOD developments by creating destinations rather than just sleeping quarters.

The 25-acre footprint is substantial but not overwhelming for North Texas. It fits appropriately into Carrollton’s existing urban fabric while being large enough to function as a genuine district rather than a single isolated project.

Timeline and Phasing

Major construction is underway, with EVIVA Trinity Mills residences expected to begin occupancy in the coming years. Full buildout of the entire 25-acre site will extend over a longer timeline, reflecting typical phased development practices that allow infrastructure to keep pace with demand and allow market conditions to inform later phases.

The station itself has been operational as a DART Green Line stop, but its full potential as a development center requires the surrounding infrastructure—apartment buildings, retail establishments, office buildings—to function as a cohesive district.

Why This Matters for Carrollton

Trinity Mills represents a fundamental statement about Carrollton’s identity. The city could have pursued conventional suburban development: low-density residential, car-dependent retail, typical sprawl patterns. Instead, Carrollton chose to invest public resources (thus the “largest publicly owned TOD” distinction) in creating a denser, more urban neighborhood that explicitly prioritizes transit access and walkability.

This positions Carrollton as a city capable of accommodating growth without simply becoming more congested. It creates housing options for people with different preferences—some prefer traditional single-family neighborhoods, others prefer the conveniences and costs of urban apartment living. A city that accommodates both is a city with depth.

Regional Context

The Dallas-Fort Worth metroplex has struggled with congestion partly because regional growth has concentrated in traditional suburban patterns where transit access is limited. Trinity Mills Station represents the kind of investment that can gradually shift that pattern. If it’s successful, it may encourage similar developments elsewhere in the region and in Carrollton itself.

The publicly owned designation is worth noting because it demonstrates municipal commitment. The city of Carrollton is economically invested in the project’s success, which typically results in better site planning, more attention to public realm improvements, and longer-term thinking about how the development integrates with surrounding neighborhoods.

The Practical Impact for Residents

For current Carrollton residents, Trinity Mills Station means more housing diversity, more retail and dining options, more employment proximity, and a more urban neighborhood identity in the central part of the city. For the regional audience considering whether to move to DFW, Trinity Mills represents one of the more thoughtful, forward-looking residential developments in the area—one where you can actually leave your car at home regularly without sacrificing access to regional destinations.

That’s the vision. Trinity Mills Station succeeds when you can walk to the station from EVIVA, take the Green Line downtown for dinner, and not once require vehicle operation. The development is built for exactly that scenario, which distinguishes it from the typical suburban model.