In August 1890, the 246 offices of the building were illuminated for an entire week to honor the Detroit International Exposition.
Edison incandescent lights and gas were utilized to light up the offices.
During the day, the offices of the building were opened to allow visitors to tour the building.
 Throughout the life of the building incandescent lights had a usage sufficient for Westinghouse Electric & Manufacturing Company's Incandescent Lamp Division carried a stock in Detroit specifically for the Hammond Building.

The roof of the building was used to signal ships in the Detroit River to warn them of storm conditions on the Great Lakes.

In February 1906, a night watchman, William Urquhart, mistook an open elevator door as an open door in the darkness and fell down the elevator shaft from the first floor to the basement.
He suffered broken limbs and internal injuries.
The Detroit Free Press anticipated his demise as they reported the fall to be fatal.

Tenants varied over the years of operation.
In 1911 the Dime Savings Bank was a tenant prior to construction of the Dime Building.
In 1911, the United States Department of Agriculture occupied the building.
Other tenants, were of a smaller nature, like J. A. Mercier a general contractor, who wrote to the Hammond Building Company to advise them that outside workmen may "invariably come to (his) office as there is no other place for them to go."
He further advised, "if this custom does not agree with your views...I can find an office in some other office building where I can do my business as I see fit to do it"
In August 1890, the 246 offices of the building were illuminated for an entire week to honor the Detroit International Exposition. Edison incandescent lights and gas were utilized to light up the offices. During the day, the offices of the building were opened to allow visitors to tour the building.  Throughout the life of the building incandescent lights had a usage sufficient for Westinghouse Electric & Manufacturing Company's Incandescent Lamp Division carried a stock in Detroit specifically for the Hammond Building.
The roof of the building was used to signal ships in the Detroit River to warn them of storm conditions on the Great Lakes.
In February 1906, a night watchman, William Urquhart, mistook an open elevator door as an open door in the darkness and fell down the elevator shaft from the first floor to the basement. He suffered broken limbs and internal injuries. The Detroit Free Press anticipated his demise as they reported the fall to be fatal.
Tenants varied over the years of operation. In 1911 the Dime Savings Bank was a tenant prior to construction of the Dime Building. In 1911, the United States Department of Agriculture occupied the building. Other tenants, were of a smaller nature, like J. A. Mercier a general contractor, who wrote to the Hammond Building Company to advise them that outside workmen may "invariably come to (his) office as there is no other place for them to go." He further advised, "if this custom does not agree with your views...I can find an office in some other office building where I can do my business as I see fit to do it"
Hammond Building