Once housing a Union Pacific rail yard, Symphony Park is being master developed for mixed-use by the city of Las Vegas, which is also the landowner.

In 2024, plans were announced for the new Las Vegas Museum of Art, which will occupy two acres of land on the east side of Symphony Park upon its projected completion in 2028.

Symphony Park is the only project in the state of Nevada to be accepted into a national pilot program for green neighborhood developments.

Symphony Park was awarded gold certification under stage 2 of the U.S. Green Building Council’s Leadership in Energy and Environmental Design for Neighborhood Development.

October 2005 The Related Companies pulls out of a deal to develop office space and residential high-rises in Union Park.

October 2007 The Smith Center for the Performing Arts receives $100 million challenge grant from the Donald W. Reynolds Foundation.

November 2007 City Council approves a $1.71 million agreement with The Whiting-Turner Contracting Company to handle pre-construction services for The Smith Center For The Performing Arts.

[citation needed] Chef Charlie Palmer also planned to open a hotel in Union Park, although the project has been delayed several times.

[14] A mixed-use project, known as Origin, will occupy six acres and include a 32-story condo building known as Cello Tower, featuring 240 units.