DeKalb County Jail

Expanding a Jail Facility to Increase Capacity and Safety for Inmates and Staff
Sycamore, Illinois

DeKalb County needed to expand the capacity of its existing jail facility to accommodate inmate and parking overcrowding. With these needs in mind, our team reconfigured the existing site to accommodate the jail expansion, including rerouting and reconfiguring streets, rerouting existing utilities, and increasing parking capacity within the county campus. 





The project required meticulous phasing and logistics planning to accommodate the tight construction site in a busy area of downtown Sycamore, Illinois. The design team located the new detention center addition in the area directly east of the existing public safety building, connected by a new interior elevated corridor bridge. To overcome budgetary and timing challenges, our professionals worked to create a highly detailed and complex phased design and construction schedule.

The completed project nearly doubled the facility’s square footage and bed capacity, providing space for rehabilitation to those incarcerated and a safe working environment for the correctional staff.

We provided architecture and interior design (associate architect Kimme & Associates, Inc.); mechanical, electrical and plumbing engineering; structural engineering; technology design, and landscape architecture services. 


Dekalb County, IL

Square Footage

83,000 SF


$35 million


  • Architecture
  • Engineering


  • Justice


  • Midwest