Twin Valley


Twin Valley Behavioral Healthcare

Hasenstab Architects, along with design collaborators Array Architects, designed the new, 270,000 square foot Twin Valley Behavioral Healthcare Replacement Hospital that will include 208 beds arranged in eight patient units (26 beds per unit).

The universal units are designed to accommodate multiple forensic unit designations for enhanced flexibility. The majority of the patient rooms will be private, single-occupancy rooms with a small number of double-occupancy rooms per unit. This design approach incorporates the best aspects of an On-Unit Treatment Concept while providing limited, but enhanced off-unit experiences. The new facility also has a dedicated admissions space with holding bays, exam rooms and processing area.

The new hospital is being built to the north of the existing Twin Valley Behavioral Healthcare facility, which will remain operational during construction. The existing campus buildings will be demolished once construction is complete.

The facility has been planned to accommodate a future addition for a “high security” forensic unit.

Twin ValleyTwin Valley

Project Details


Ohio Department of Mental Health & Addiction Services (OMHAS)


Columbus, Ohio


2023 (Estimated)


270,000 Square Feet


Array Architects

Key Team Members

  • Dan Herstine
  • outpatient behavioral Marge Zezulewicz
  • Eric Droll
  • Dan Gardinsky
  • Chitra Matthai
  • outpatient behavioral Amador Gonzalez
  • Liz Tartabini
  • Philip Erb
  • Nick Davis
  • Tina Kessel
  • Tom Walker
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