Main Library Project

Main

Library Project

Status: Complete
Reopening Celebration: July 12-14, 2024
Improvement Category: Multiple Improvements
Planning Zone: Central
Estimated Investment: $43.4 million

  • New Roof - North Building: $1.2 million
  • Energy Retrofit - South Building: $5.6 million
  • South Building Skylight and Elevator Replacement: $5.9 million
  • North Plaza Redesign, South Plaza Redesign and Interior Refresh: $30.7 million

Architect: Group 4 Architecture & Champlin Architecture
Construction Manager at Risk: Turner Construction


The Main Library's North Building remains open for library service during construction on the South Building. Learn where to find services and materials during construction.

Interested in more details? Read the project updates.

Meet Me at MainThe Main Library's South Building reopened reopened with a weekend celebration, July 12-14, 2024.

View the weekend's live blog for a recap of the exciting events!


At 540,000 square feet, the Main Library is the Library's flagship location, accounting for about half of the Cincinnati and Hamilton County Public Library's public space. In December 2017, the Library Board of Trustees confirmed the desire to retain the Main Library's North Building, and to have both buildings of the Downtown Main Library re-envisioned to better meet customer needs. Improvement information is contained in the Central Planning Zone Facility Master Plan Document.

The Main Library's South Building is closed for the duration of the project. Visit the Main Library's North Building for materials and services.

Main Library Plaza Redesign and Interior Refresh

Designed by Group 4 Architecture + Champlin Architecture, the Main Library renovation injects the cultural and geographic landscapes of Cincinnati and Hamilton County into the existing mid-century modern buildings.

  • The plaza walls in both the South and North Plazas have been removed and the South Plaza has been lowered to street level to create a safer and more welcoming Vine St. entrance.
  • Portions of the interior of the library will receive a light renovation.
  • The new, at-grade South Plaza and large glass curtain wall will welcome library users to the revitalized atrium. The design will express the wonderful range of library spaces within. Upon entering the atrium, an inviting and warm social stair will knit together the Walnut Street and Vine Street entrances while providing a range of seating opportunities for individuals, small groups, and large events. Inspired by the hills of Cincinnati, this welcoming design provides new amenities and gathering spaces, as well as an intuitive connection to the upper floors of the library, accessed through a new stair extending from the second floor upwards.

Skylight and Elevator Replacement

In 2021, crews replaced the South Building atrium skylight. Throughout 2022, crews replaced several elevators throughout the Main Library.

Energy Retrofit and Roof Replacement

The heating, ventilation, and cooling (HVAC) and electrical systems in the South Building - built in the 1950s - were updated in 2020. This project included the replacement of original boilers with three new boilers, upgrades to the cooling system, adding 14 new air handlers, the addition of a fire suppression system, and improvements to the electrical system. The roof of the North Building was replaced in 2019. The South Building roof was replaced recently, providing a completely updated roofing system for the entire 540,000 square foot building.

Take a closer look at the Energy Retrofit project from start to finish through August, opens a new window, September, opens a new window, October, opens a new window, November, opens a new window, and December, opens a new window 2019 update videos.

Construction Gallery

Project Updates

Community Presentations

Blog Posts

Downtown Main Library Next Generation Library Blog Posts

Downtown Main Library Reopening: Live Blog

Main Library’s South Building is officially open after a weekend of festivities! Recap the exciting events with our live blog.

“Meet Me At Main” for the Main Library Reopening Celebration

This weekend, explore the new spaces and services at the Main Library! Enjoy music, food, events, and plenty of fun for all ages.

Now Open! Your Guide to the Main Library's New North Plaza

Get insider tips for CHPL’s newest event space outside the Downtown Main Library.

More Improvements Coming to the Downtown Main Library

The Downtown Main Library is transforming with new spaces to explore, designed to encourage discoveries and foster community connections.

We'd love your feedback on Building the Next Generation Library.

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