Currently under construction, the Fifteenth office tower will rise to just over feet at over 40 stories making it the fifth-tallest building in Denver upon completion in late or early Like with many large cities in the United States, Denver's CBD and the adjacent neighborhoods were blighted with the presence of many open parking lots in the s and '80s. This is especially true around the newly redeveloped and highly popular Union Station area in Denver's LoDo Lower Downtown neighborhood. There are also improved pedestrian friendly connections to the RiNo River North , Five Points, Auraria and Highland neighborhoods from the new development. Historic Union Station itself has been fully renovated and turned back into a travel and activity hub. This includes spires and architectural details but does not include antenna masts.