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Hospital Tower and Medical Office Plaza

Building on Our Promise

Building on our promise — and our mission to improve the health of the communities we serve — St. Luke’s is starting an exciting new phase to upgrade and enhance our Boise Medical Center. Following the completion of the Idaho Elks Children’s Pavilion in 2019 and hospital ancillary facilities in 2021, including a new parking garage for patients and a utility plant to improve facility operations, St. Luke’s will soon launch efforts to construct a new hospital tower and adjoining medical office plaza. These new buildings, all part of the city of Boise-approved master plan, will directly improve access to care for patients, while increasing St. Luke’s ability to care for the growing number of patients in our communities.

New Hospital Tower

The new tower, located just north of the existing hospital along Jefferson Street between Ave. B and 1st Street, will be critical in enabling St. Luke’s to meet current and future health care needs of the communities we serve. The facility is expected to be two stories below ground and nine stories above ground — one story shorter than the existing St. Luke’s hospital tower.

Key facts and figures about the new hospital tower include:

  • 860,000 square feet of patient-centered care.
  • 80 additional patient beds, eventually increasing the hospital’s capacity to more than 500 beds.
  • Seven new operating rooms, for a total of 28 at the Boise Medical Center.
  • Two neurointerventional biplanes for innovative diagnosis of neurological disorders.

New Medical Office Plaza

The new medical office plaza will integrate into the new tower and connect to the new patient parking garage that was completed in 2021 via a skybridge over 1st Street. The new MOP will consolidate the Idaho Heart Clinic and Jefferson Medical Office Plaza, creating more access and a streamlined experience for patients.

  • 180,000 square feet.
  • Multiple clinics and providers under one roof to care for patients.
  • Seamless, integrated access to care for patients and families.


Following approval processes with the appropriate government entities and neighbors, St. Luke’s reconfigured the ambulance entrance to the hospital’s emergency department near Ave. B and Jefferson Street. Work on this new entrance completed in early 2024. Emergency vehicles now have access while the new tower and medical office plaza are under construction just north of the existing medical center. Construction on the new tower and medical office plaza began in spring of 2024.*

*Dates and figures subject to change.


2024 –

  • Spring: Preparation work began on new hospital tower and medical office plaza.
  • Traffic pattern changes: Starting in May 2024, the lane closest to the construction area — the far right, eastbound lane on Fort Street from 1st Street through where it turns south to Avenue B — will be closed temporarily to allow construction vehicles to safely navigate the area. Traffic routes will stay open in both directions. In addition, 1st Street between State Street and Jefferson Street will be closed temporarily.
    • Multiple cranes will be in use during construction.
    • Construction hours are approximately 7 a.m. to 7 p.m., Monday through Friday. Some activity might occur outside these hours, adhering to City of Boise guidelines.
    • Please use caution while navigating the area.
    • Expected in late 2024, crews will begin setting columns for the new tower and connector bridge. Detailed information will be provided closer to the date.

See the entire Boise campus development timeline on the St. Luke's Boise Development Plan page.

*Dates and figures subject to change.

Roadway work near St. Luke’s Boise Campus 

As of fall 2023, several roadway projects, under the supervision of the Ada County Highway District (ACHD), are in progress near St. Luke’s Boise Medical Center. Learn more about ACHD and roadway projects here:

If you have a question related to the St. Luke’s downtown campus development project, email [email protected]

All Boise Development Plans

St. Luke's Boise Development Plan

St. Luke’s plans to modernize our Boise medical center to meet local and regional health care needs for many years to come are underway.

Make a Donation to Support Boise Campus Development

Make a Donation to Support Boise Campus Development

You Can Make a Difference

Generous and thoughtful gifts are needed to fully fund this critical development. Your support will create lasting impact for every life St. Luke’s touches. If you would like more information or to consider making a gift, please email St. Luke’s Health Foundation or call us at (208) 381-2123.