City Hall Plaza Renovation


The main plaza on the west side of Boise City Hall is undergoing an extensive renovation to repair structural issues. These structural issues include replacing a water-proof membrane underneath the plaza to prevent water leaking into city hall’s underground parking garage. As part of this repair work, a long-overdue upgrade of the entire plaza was approved by Mayor David Bieter and City Council in support of the city’s larger effort to create more inviting public spaces and urban parks throughout downtown Boise.

Once completed the new City Hall plaza will promote community gathering and easier daily use. It will feature:

  • An elevated event plaza and seating steps
  • A civic lawn
  • An interactive water feature
  • Integrated lighting and a grove of trees
  • A public art sculpture
  • 100% stormwater infiltration - achieved through the combination of permeable pavement and modular suspended pavement systems

Total Project Timeline: April – December

(All dates are subject to change and based on information available at this time). We appreciate your patience throughout this process.

Phase 1: (Plaza) - Capitol Blvd. Entrance Closed
(April – Oct.)

The Plaza
Construction on the plaza has focused on installing the "Cottonwoods" sculptures (designed by C|T|Y Studio), concrete seating walls and geofoam (looks like styrofoam). Once these items are fully in place, concrete will be poured throughout the plaza as the final elevated plaform takes shape and Capitol Blvd. entrance is reopened. Considerable detailed work like planters, landscaping, and furnishings will continue once the infrastructure is in place.

Phase 2: (Main Street) - Main Street Entrance Closed
(Oct. – Dec.)

The Phase 2 start date is being shifted to coordinate our work with streetscape improvements being made by Capital City Development Corporation (CCDC) on the south side of Main Street between 6th Street and Capitol Blvd. Work by CCDC will continue into October. Improvements on the City Hall side of Main Street, as part of the plaza project, are anticipated to begin after CCDC work is complete to reduce traffic congestion and improve access to Main Street.