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Lost building, Cadillac Community, 1949 to 2025

Mammoth Department Store

Demolished in 2025

A drawing of Mammoth Department Store from its recorded size and style. No photo we may share has turned up yet.
Opened
1949
Torn down
2025

Designed by Charles N. Agree

Mammoth Department Store stood in Cadillac Community from 1949 until 2025. Here is what it was, who made it and where to find the spot today.

Then and now

What stands there now

Today

The spot today, from the street Photo: Street View, 2026

A vacant lot

Detroit's Mammoth Department Store, designed by Charles N. Agree, stood on this spot for 76 years. It came down 1 years ago. Today the spot is a vacant lot.

  1. 1949 Opens Mammoth Department Store
  2. 2025 Comes down Mammoth Department Store
  3. 2026 Today Vacant lot
How we know what stands there
  • OpenStreetMap vacant lot at the map point
  • County parcel records VACANT COMMERCIAL

Checked October 25, 2026. We never guess: a site no source speaks for shows no answer.

What is there now

A vacant lot

  • Today Source: OpenStreetMap and County parcel records
  • Mammoth Department Store came down Source: Historic Detroit
  • Alteration permit Removal Of All Above Grade Building Components Per Documents. Remove top of all below grade foundation walls to 16" belo, estimated at $1,750,000 Source: City and county building permits
See then and now

We checked Wikidata, Wikipedia, OpenStreetMap, Rebuild Detroit's landmark records and the county parcel records on October 25, 2026.

The story

In 1949, as the city's factories turned to the war effort and then back to cars, Mammoth Department Store went up in Cadillac Community.

Charles N. Agree drew the plans.

It is gone now, demolished in 2025, and the map pin below marks where it stood.

Timeline

  1. 1949 Built Designed by Charles N. Agree
  2. 2025 Demolished
  3. 2025 Alteration permit April 15, 2025
  4. 2026 Today 1 years since it came down

Where it is

15401 Grand River Ave.

Who made it

More from Detroit in the 1940s

Around the block

It is in Cadillac Community. See the neighborhood's homes, pros and story.

Sources

Facts only, gathered from these sources. The story above is written by Rebuild Detroit. Every photo names its author and license where it appears.