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Cadillac Detroit-Hamtramck Plant (Factory Zero)

Cadillac Detroit-Hamtramck Plant (Factory Zero)

The Cadillac Detroit-Hamtramck plant, also known as Factory Zero or sometimes simply as D-Ham, is a vehicle assembly plant that straddles the border between Detroit and Hamtramck, Michigan. It is owned and operated by Cadillac’s parent company, General Motors. The first vehicle to roll off its production line was a 1986 Cadillac Eldorado, which was assembled on February 4th, 1985. From 1985 to 2020, the facility was responsible for the production of many Cadillac sedans and full-size cars, including the DeVille, Allanté, Seville, DTS, ELR and CT6.

The 2020 CT6 was the last Cadillac model to be assembled at the Detroit-Hamtramck plant, at which point the facility was slated to be permanently shuttered. However, after labor negotiations between General Motors and the United Auto Workers (UAW) union, it was decided that the plant would be reallocated to the production of future electric vehicles, resulting in the facility being renamed Factory Zero to represent GM’s mission statement of a future with zero crashes, zero emissions, and zero congestion on highways.

The plant was closed in May of 2020 for retooling for electric vehicle production. Currently, there are no Cadillac models being built at the Factory Zero / Detroit-Hamtramck assembly plant. However, the upcoming battery-electric variant of the Cadillac Escalade will be assembled at the facility during the 2023 calendar year.

Quick Facts

    • Year opened: 1985
    • Size: 4.1 million square feet on 365 acres
    • 2500 East Grand Blvd
      Detroit, Michigan, 48211
      United States
    • Employee information (as of June 30th, 2021
      • Hourly: 205
      • Salaried: 157
      • Total: 362
    • Union Local: UAW 22


In the final years leading up to its closure and transformation into Factory Zero, the Cadillac Detroit-Hamtramck plant built the Cadillac CT6, which rode on the Omega platform.

2020 Cadillac CT6

Previously in production:

    • 2016-2020
    • 2014 and 2016
      • Cadillac ELR luxury plug-in hybrid electric coupe
    • 2006-2011
      • Cadillac DTS luxury sedan
    • 1994-2005
      • Cadillac DeVille full-size luxury sedan
    • 1987-1993
      • Cadillac Allanté two-door luxury roadster
    • 1986-2004
      • Cadillac Seville luxury car
    • 1986-2000
      • Cadillac Eldorado luxury car

2017 Cadillac ELR

Future production: 

    • 2024
      • Cadillac Escalade IQ (electric Escalade)
      • Cadillac Escalade IQL (electric Escalade ESV)

It’s worth noting that in addition to the aforementioned Cadillac products, the Factory Zero / Detroit-Hamtramck plant also produces vehicles for other brands owned and operated by Cadillac’s parent firm, General Motors. See here for more details.


    • January 2020: $2.2 billion toward Factory ZERO retooling

State economic impact

Plant-wide state economic impact for the 2020 calendar year was as follows:

    • Wages: $38,977,768.43
    • Total tax withheld: $7,714,695.69 

Plant Green Initiative

The Cadillac Detroit-Hamtramck plant participates in various environmentally-friendly initiatives and objectives, including:

  • Creating a 16.5-acre wildlife habitat conservation area
    • Received recognition and certification from the Wildlife Habitat Council (WHC)
  • Building a 30kW solar carport located in the visitor’s parking lot
    • Capable of simultaneously charging up to 10 electric vehicles
  • Recycling roughly 70,000 wood pallets and 609 tons of cardboard annually
  • Housing Michigan’s largest ground-mounted solar array for generating 516 kW
    • Developed in partnership with a local utility company
    • 6.06 acres in size
    • Capable of providing 10 percent of the plant’s fixed energy demand


The history of the Cadillac Detroit-Hamtramck plant is steeped in controversy. The site on which the facility exists was formerly a large Polish community, which was informally referred to as Poletown. In the early 1980s, the proposed site for the factory was home to approximately 4,200 residents, 1,400 homes, 15 churches, and 140 businesses. At the time, Detroit was desperate for economic development, and government officials took advantage of Michigan’s law of eminent domain, seizing land from residents and essentially gifting it to GM.

The controversial appropriation of the land led to the large-scale clearing of a section of the Poletown neighborhood, and was met with protests and court battles. Eventually, the case was presented in the Michigan Supreme Court, with a judge ruling in the favor of the automaker, citing that economic development is a legitimate use of eminent domain. The Detroit Mayor at the time, Coleman Young, also sided with GM and Cadillac, pleased with the new jobs and revenue the factory would bring to his city. Despite protests and sit-ins at a local church, demolition of the Poletown neighborhood commenced in late 1981 to make way for the Cadillac Detroit-Hamtramck plant. 

As previously mentioned, the first vehicle to be built at the plant was a 1986 Cadillac Eldorado on February 4th, 1985. Almost exactly 35 years later, the final Caddy to be assembled before the plant was shut down for retooling was a 2020 Cadillac CT6, which was assembled on January 24th, 2020. This also marked the end of production of the CT6 for the North American market, with the final CT6 being unceremoniously sold at a Maryland dealership

Production Status

Assembly of Cadillac models at the Detroit-Hamtramck plant is currently on hiatus as the facility undergoes retooling to accommodate the production of electric vehicle. Find full details on Cadillac production status here: Cadillac production status.


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Cadillac Detroit-Hamtramck Plant Photos

Photos coming soon.

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