headquarters building remains on site and this project is being built around. Name Type Height* ft / m Floors Anticipated Groundbreaking Notes Two Tabor Office 494 / Under Design Review 77 Block 162 Hotel Hotel 450 / Under Design Review 73 Block 176 South Residential 414 / Under Design Review. 53 26 Denver Financial Center 374 / Daniels Fisher Tower 371 / Located in Denver's Skyline Park, D F Tower was the tallest building located west of the Mississippi River from 19; Was the tallest building constructed. This includes spires and architectural details but does not include antenna masts. 71 World Trade Center Denver Mixed-Use 200 / When ultimately completed, WTC-DEN - located in Denver's Five Points neighborhood - will provide over 250,000 square feet of office space, a conference center, a 260-room hotel, 30,000 square feet. Tallest building in the Mountain States.