Haunted Hospital: Muirdale Sanatorium in Wauwatosa

Kristen Winiarski • November 3, 2022

Muirdale Tuberculosis Sanatorium


While it's natural for old buildings to change businesses throughout the years, hospitals don't usually get converted into business spaces, but that's precisely what happened to the Muirdale Tuberculosis Sanatorium, located in Wauwatosa, WI. Now, it is known as the Technology Innovation Center and houses tech companies. The feel of the building being a hospital still remains, and will give you the creeps. Believe me, I've been in it.


Sanatoriums are often mixed up with sanitariums, so it's important to note they're not the same although it is suspected that at different times this building was both. Sanatoriums are for treating chronically ill patients, while sanitariums are sometimes thought of as insane asylums. This place was used as a center for people suffering from tuberculosis, so many people lived and died here, some of whom may have never left.

Haunted Hospital: Muirdale Sanatorium

History

The hospital was built in 1915, and its construction pioneered methods for the treatment of this formerly deadly disease. It is 80,000 square feet and has multiple stories. If you walk through it, you will feel like you're in a hospital, not a business building and it's pretty eerie. The way the doors are set up is reminiscent of this hospital and spaced out at equal intervals. As you walk through, you feel like you should be visiting an ill patient instead of a tech company.


The other cool architectural feature is the design of the building shape itself. It shows an innovative approach to treating the disease with this tall, single building. There used to be cottages where patients lived who didn't need as much treatment that surrounded the still-standing main building. This separation and design allowed doctors more space to treat many patients and enough room for research labs, operating rooms, kitchen, and dining space.

 

My Experience

I once went to this building to meet with one of the technology companies that currently call it home. As soon as I walked up the creepy stone stairs, I knew the building would be interesting. The waiting room was this large round room with a bunch of windows, which must have been nice for the patients to look out into the world.


We went up to another floor and what struck me the most was how much it looked like a hospital, and this was before I knew its history. The space was eerily quiet, and although the offices inside have nothing to do with medicine, the feeling of apprehension filled the space as if you were in a functional hospital.

Haunted Hospital: Muirdale Sanatorium

Haunted Stories?

Given that many people died in this space, it is logical to assume there may still be some lurking around. Coughing, voices, and apparitions have allegedly been seen. It was a mental health facility for the elderly for a few years in the 1970s (but no, still not an insane asylum), and permanently closed in 1978. It was scheduled for demolition until Milwaukee historical preservationists lobbied for it to be on the National Register of Historic Places (which was finally certified in 2018) but in the 1990s, it was decided to turn it the building into a business incubator.

In May of 2000, a contributor posted this to a 
local Internet forum :

I work in a building that used to be the Milwaukee County Sanitarium. The county has turned the building into a technology incubator for small businesses and has recently renovated the 5th floor for offices. The 5th floor was where the most troubled patients were living and many were said to have died here. I am now working on the 5th floor.
There have been numerous sightings and door-slammings, moaning pipes and cries for help. An executive here was working late one night and saw a nurse in the conference room in full uniform, smoking a cigarette. Her age was mid-forties.
Just this past Friday 2 people were working late and experienced doors slammings, up and down the hallway, and nobody was here.
The experiences are historic and common. One night, prior to the 5th floor renovation, a man was staring out a window at a worker for our company. It was 2am and the building was vacant. He appeared to be mid-60's and bald(ing). Again, visible plain as day-on the 5th floor.

Sounds like he mixed up his sanitariums and sanatoriums, but if you're looking for a creepy building, check this one out. Just keep in mind that it's now an office building. Though, you couldn't pay me to hang out in there all day.



Explore the Haunting History of Muirdale Sanatorium


Unearth the eerie secrets of Wauwatosa’s Muirdale Sanatorium, where the shadows of its past as a tuberculosis hospital still linger. Now transformed into the Technology Innovation Center, this former sanatorium still retains its haunting hospital feel, with chilling whispers of its former life surrounding each hallway and office.


Join us for a Muirdale Sanatorium Tour and dive into the spine-tingling stories of those who never left. With unexplained noises, eerie apparitions, and ghostly tales, this is one haunted destination you won’t want to miss. Book your tour now and experience the lasting legacy of Muirdale’s past!


Check our Milwaukee, WI ghost tour reviews on Google to see what others are saying. Ready for a haunting adventure? Book your Burnt Island Light tour today!

Find Your Next Paranormal Experience

Front View of Annabelle's at the Gilmore Hotel.
By Mike Huberty July 23, 2025
Experience the haunted history of Alaska on the Ketchikan Ghost Walk. Visit the historic Gilmore Hotel and Annabelle’s, one of America’s most haunted bars, on this chilling guided tour.
Charles Manson mugshot
By Mike Huberty July 22, 2025
Explore the tragic legacy of the Sharon Tate murders, Charles Manson’s twisted cult, and the haunting activity at the Oman House, Hollywood’s most infamous paranormal hotspot, on the anniversary of the crime that shocked the world.
Bigfoot in Ketchikan, Alaska
By Mike Huberty July 21, 2025
Explore chilling Bigfoot sightings and eerie logging camp legends in Ketchikan, Alaska. Discover why the Tongass Forest may be hiding more than just trees.
Seaweed Charlie, an aviator, trying to stay afloat in the icy waters of Lake Michigan
By Mike Huberty July 17, 2025
A ghostly aviator rises from Lake Michigan in Evanston, Illinois, haunting the shores near Calvary Cemetery in this chilling tale of love, loss, and final rest.
A corporate group tour having a great time in Milwaukee, Wisconsin
By Mike Huberty July 16, 2025
Discover how ghost tours can boost corporate team building through shared experiences, neuroscience, and immersive storytelling. A fun, research-backed way to reduce stress and improve team cohesion.
A haunted piece of artwork at the Cannon Club at the Gallery Inn in Old San Juan, Puerto Rico
By Mike Huberty July 15, 2025
Discover the haunted charm of the Cannon Club in Old San Juan, where art, music, and a friendly ghost create one of America’s most unforgettable haunted bars.
Cemetery in Puerto Rico
By Mike Huberty July 13, 2025
Discover how a lifelong fascination with ghosts led to the creation of American Ghost Walks, one of the fastest-growing haunted tour companies in the U.S. From early paranormal encounters to a pitch on Shark Tank, this is the story of turning spooky passion into a thriving business.
The stage at the haunted Alaskan Hotel and Bar in Juneau
By Mike Huberty July 12, 2025
The Haunted Alaskan Hotel: A Century of Ghostly Encounters in Juneau’s Most Notorious Lodging
The Wendigo
July 11, 2025
Explore the chilling legend of the Wendigo—from Native American folklore to real-life cannibal tales and ghost stories.
Christopher Reeves flying over Earth as Superman
By Mike Huberty July 10, 2025
Explore the tragic legacy of the Superman Curse—from its creators’ heartbreak to the eerie misfortunes of stars like Reeves, Reeve, Kidder, Brando, and Hackman.