Lone Tree Plans 10,000 New Homes, Adding 30,000 Residents by 2030

Lone Tree's RidgeGate master-planned community is set for its most aggressive expansion yet, with city officials announcing plans to add as many as 10,000 housing units and roughly 30,000 residents by 2030, a growth surge that raises immediate questions about who will fund the roads, schools, and utilities that tens of thousands of newcomers will need from day one.

The plan covers approximately 3,500 acres south of Lincoln Avenue on both sides of Interstate 25, structured as a multi-village buildout that Mayor Marissa Harmon and city planners say will nearly double Lone Tree's population. RidgeGate currently houses between 5,000 and 6,000 residents; the new phases would push that figure past 35,000.

Construction is already underway on the east side of I-25, where Century Living has broken ground on a 340-unit luxury rental project in RidgeGate Village Center with an expected opening in mid-2026. Southwest Village, the early east-side neighborhood, is planned to include approximately 1,860 homes alongside 200 acres of open space, trails, an elementary school, and a regional park. The east side's full 2,000-acre footprint incorporates light rail stations and natural preserves including Schweiger Ranch and Badger Gulch.

Transportation ranks among the most immediate pressure points. A population jump of 30,000 residents, combined with the buildout's projected 50,000 jobs at full development, will push additional traffic onto I-25, local arterials, and RTD transit stations that already serve the corridor. City planners will need to coordinate road improvements and multimodal infrastructure in parallel with residential construction to prevent congestion from outpacing capacity.

School district and public safety resources face similar timing pressures. New elementary schools and neighborhood parks are built into the plan, but synchronizing Douglas County School District capacity with the pace of residential infill will require coordinated funding decisions that have not yet been publicly detailed.

The housing mix also drew notice. Of the roughly 8,000 units planned for the east side alone, only 350 are designated as attainable, leaving a significant gap between overall housing volume and any meaningful affordability component as the broader Douglas County market remains expensive.

The west side of I-25 already anchors major regional employers including Kiewit, Charles Schwab, and HCA HealthONE Sky Ridge Medical Center, and city planners say the east-side expansion is designed to complement that employment base. The Lone Tree Village retail center, anchored by King Soopers, is positioned as the commercial spine for the expansion's early phases.

At full buildout, RidgeGate's 50,000 projected jobs would rank Lone Tree among the Denver metro's most significant employment centers outside the city itself. How quickly infrastructure funding is secured to match that pace will determine whether Douglas County commuters experience this decade's growth as opportunity or gridlock.