A groundbreaking is set for the Marble Alley development on Wednesday.

The $20 million development will include a large apartment complex and parking garage between State Street and South Central in Downtown Knoxville.

PREVIOUS STORY: Knox developer gets green light for Marble Alley

Knox County Mayor Tim Burchett and Knoxville Mayor Madeline Rogero will officially break ground on the project.

Developers expect construction to take about two years.