1800 Welton Street
The crane is officially down at Upton Residences, marking a major milestone as one of downtown Denver’s largest condominium projects in more than a decade approaches completion.
Located at 1800 Welton St., the project will deliver 461 condo units across two towers rising 38 and 32 stories. It represents the most significant condo development in Denver since The Spire in 2009 and adds much needed for sale inventory to the urban core.
Beyond its scale, Upton is designed to compete with high end rental product by offering a full amenity package and modern residential design. Units range from approximately 530 to 1,800+ square feet, with layouts spanning studios to three bedroom residences and penthouses.
Residences feature floor to ceiling windows, premium finishes, and in most cases private balconies or terraces with city and mountain views. The project leans heavily into lifestyle driven design, pairing ownership with a hospitality style experience more commonly found in newer apartment towers.
Shared amenities total nearly 18,000 square feet and include a resort style pool deck, hot tubs, fitness center, co working spaces, social lounges, and private dining areas with a chef’s kitchen. Additional features such as a 24/7 concierge, outdoor terraces, and integrated retail space at the base of the building further position Upton as a full service residential environment.
For Amacon, the Vancouver based developer behind the project, Upton reflects both opportunity and complexity. While the firm has delivered projects across North America, its Denver entry has come with a series of challenges tied largely to local subcontractors.
The developer has filed multiple lawsuits related to construction issues. One centers on concrete subcontractor GCon, which Amacon alleges removed structural supports in a way that raised concerns about the building’s stability. A judge ordered the contractor off the job site, where it has remained absent.
A separate and more detailed lawsuit targets window subcontractor 8G Solutions and its leadership. Amacon alleges the group concealed ongoing performance issues with the window system during testing and installation. According to the complaint, internal communications suggest the subcontractor struggled with execution and failed to fully disclose defects, ultimately leading to the installation of windows that may not have met required standards.
8G Solutions has denied the claims and stated it will defend itself.
Taken together, the disputes point to execution challenges at the subcontractor level rather than a lack of demand or vision for the project itself. They also highlight the risks developers face when entering new markets and relying on local construction teams.
Despite these setbacks, Upton Residences is now nearing delivery, with tours underway and momentum shifting toward completion. The project stands as a significant addition to downtown Denver’s housing supply, while also serving as a real world example of the complexities tied to delivering condominium projects in today’s environment.