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Bedrock Management Services (formerly Bedrock Real Estate Services) is an American real estate firm headquartered in Detroit, Michigan. Founded in 2011, Bedrock is controlled by Dan Gilbert through holding company Rock Ventures. One of the largest real estate companies in Detroit, Bedrock owns many of the tallest and most historic buildings in the city's Downtown and Midtown cores, and is often considered the most influential developer in the 2010s revitalization of downtown Detroit.

History
In 2009, Quicken Loans, then wholly owned by Dan Gilbert, began the process of moving its headquarters from Livonia, a Detroit suburb, to downtown Detroit. As part of the move, the company acquired Chase Tower in April 2011. Bedrock was founded later that year to manage Gilbert's real estate holdings.

Notable properties
Listed by date of acquisition.


 * Chase Tower (2011)
 * Chrysler House (2011)
 * One Woodward Avenue (2012)
 * One Campus Martius (2014)
 * Ally Detroit Center (2015)
 * Tower City Center (2016)
 * Buhl Building (2017)
 * Courtyard by Marriott at Millender Center (2019)

Downtown Detroit security
Given Bedrock's large presence in Detroit, security cameras on the company's buildings capture activity throughout much of Downtown; per a Detroit Police official, Bedrock's cameras cover nearly every street and alley in Downtown. These cameras are monitored at a control center at The Qube, and operators notify authorities of emergency situations. Bedrock has also been known to provide recordings to the police in criminal investigations.

In addition to the cameras, Bedrock commissions private security guards to patrol downtown streets. These patrols began in 2013 in response to cuts at the Detroit Police Department amid the city's bankruptcy. The company initially contracted with Securitas to provide guards, before switching to rival firm SecurAmerica in 2018. Allied Universal acquired SecurAmerica in 2021, and subsequently took over Bedrock's patrols. Bedrock also contracts with City Shield Security Services, a Detroit-based firm.

Controversy
Bedrock's security measures are widely credited with improving the safety of downtown Detroit; at the same time, they've drawn criticism over privacy concerns.

2015 American Coney Island incident
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Free Press surveillance
In 2015, reports began to circulate that Bedrock was monitoring cameras in the offices of the Detroit Free Press, which are located in the Bedrock-owned Federal Reserve Building.

2019 security guard strike
The Renaissance Center, commonly known as the RenCen, is a complex of seven connected skyscrapers in downtown Detroit, Michigan, United States. Located on the Detroit International Riverfront, the RenCen is owned by General Motors, and houses the company's world headquarters. It consists of a Marriott hotel, six office towers, and a shopping mall and atrium. The RenCen is one of the world's largest commercial complexes, with 5552000 sqft of usable space, and its central tower has been the tallest building in Michigan since its completion in 1977.

John Portman was the principal architect for the original design. The first phase consisted of a five-tower rosette rising from a common base. Four 39-story office towers surround the 73-story hotel rising from a square podium which includes a shopping center, restaurants, brokers, and banks. The first phase officially opened in March 1977. Portman's design brought renewed attention to city architecture, since it resulted in construction of the world's tallest hotel at the time. Two additional 21-story office towers (known as Tower 500 and Tower 600) opened in 1981. This type of complex has been termed a city within a city.

Despite the name, the hotel portion is not affiliated with the Renaissance Hotels chain, also owned by Marriott.

History
The idea was first conceived by Henry Ford II, the Ford Motor Company Chairman of the time. In 1970, to bring his idea to life, Ford teamed up with other business leaders to form the Detroit Renaissance. This was a private non-profit development organization which Ford headed in order to stimulate building activity and revitalize the economy of Detroit. Henry Ford II sold the concept of the RenCen to the City and community leaders. Detroit Mayor Roman Gribbs touted the project as a complete rebuilding from bridge to bridge, referring to the area between the Ambassador Bridge, that connects Detroit to Windsor, Ontario, and the MacArthur Bridge, which connects the city with Belle Isle Park.

The Detroit Renaissance announced the first phase of construction in 1971, receiving primary financing from the Ford Motor Company. It soon became the world's largest private development with an anticipated 1971 cost of $500 million. The principal architect was John Portman, the architect behind the Westin Peachtree Plaza Hotel and the Peachtree Center in Atlanta, Georgia; the Embarcadero Center in San Francisco, California; and the Bonaventure Hotel in Los Angeles, California.

The city within a city arose. The first phase of Renaissance Center opened on July 1, 1976. For phase I, the facade of the first five towers was covered with 2000000 sqft of glass, and used about 400000 cuyd of concrete. This did not include the additional glass used for the atriums. It also cost $337 million to construct, employing 7,000 workers. The heating and cooling systems for the buildings were housed in two-story concrete berms facing Jefferson Avenue. Other phases that included residences, additional office and retail space were never constructed.

When the Renaissance Center opened, the cylindrical central tower was originally the flagship of Westin Hotels. The top three floors of the hotel hosted an upscale restaurant, The Summit, that rotated to allow a 360 degree view. The shopping center in the podium originally housed high-end boutiques, but now contains a greater complement of restaurants in the retail mix. In its first year of operation it generated over $1 billion in economic growth for the downtown. Detroit Renaissance continued to interact with the city, by contributing to a variety of projects within the downtown area in the ensuing decades.

In 1977, managed by Western International Hotels, the central hotel tower of the Renaissance Center opened as the Detroit Plaza Hotel. It became the world's tallest all-hotel skyscraper surpassing its architectural twin, the Westin Peachtree Plaza Hotel in Atlanta. Its opening ended the Penobscot Building's 49-year reign as the tallest building in Michigan. The hotel was later renamed The Westin Hotel Renaissance Center Detroit. In 1986, it was surpassed in height by The Westin Stamford in Singapore. Since, the Renaissance Center's central tower has held the distinction as the tallest all-hotel skyscraper in the Western Hemisphere.

On April 15, 1977, Henry Ford II and Detroit mayor Coleman Young unveiled a plaque commemorating the private investors whose funds made the project possible. Later that evening, 650 business and society leaders attended a benefit to celebrate the Renaissance Center's formal dedication. The money raised from the $300-per-couple tickets went to the Detroit Symphony Orchestra. Detroit hosted the 1980 Republican National Convention at Joe Louis Arena; during this event, both presidential nominee Ronald Reagan and former President Gerald Ford reportedly stayed at the Renaissance Center.

The "city within a city" concept was duplicated in the suburb of Southfield, when the Southfield Town Center office complex - with five inter-connected golden skyscrapers and an overall area of 2200000 sqft - was constructed from 1975 to 1989. In the ensuing years, the Renaissance Center would face competition from the growing suburban office market.

In 1987, the elevated Detroit People Mover transit line began operation with a stop at the Renaissance Center.

General Motors ownership
In 1996, General Motors purchased the complex and moved its world headquarters from what is now the historic Cadillac Place state office complex in the New Center district, to the Renaissance Center, in downtown Detroit. Meanwhile, Ford Motor Company maintained offices in one of the towers in the center. Before the acquisition, Sibley's Shoes had its headquarters in the center.

GM acquired the Millender Center, a neighboring mixed-use complex, in 1998.

2000s renovation
In December 2001, General Motors unveiled the Wintergarden retail atrium. Designed by Skidmore, Owings & Merrill, it rises 103 ft tall at its highest point opening direct access to the International Riverfront. In addition, the atrium contains 150000 sqft of retail space and 40000 sqft of contiguous main floor exhibit space which was used by the media during Super Bowl XL.

Architects' initial design for the Renaissance Center focused on creating secure interior spaces, while its design later expanded and improved to connect with the exterior spaces and waterfront through a reconfigured interior, open glass entryways, and a winter garden. By 2004, GM completed an extensive $500 million renovation of the Renaissance Center. This included a $100 million makeover for the hotel. Among GM's first actions was to remove the concrete berms facing Jefferson Avenue. The renovation includes a lighted glass walkway which encircles the interior mezzanine for ease of navigation, while the addition of the winter garden provides riverfront access and a view of Canada. A covered skyway over Jefferson Avenue connects to the Millender Center, Courtyard by Marriott - Downtown Detroit, and Coleman A. Young Municipal Center.

In July 2010, Blue Cross Blue Shield of Michigan announced plans to lease 435245 sqft of Tower 500 and Tower 600 and relocate 3,000 of its employees from its building in Southfield, Michigan.

In January 2015, General Motors announced its intent to renovate much of the complex to make it more inviting as a destination for visitors to Detroit. In 2018, the GM World showroom was renovated.

In June 2015 the Ren Cen 4 Theatres theater complex announced that it was closing. With the end of Ren Cen 4, the city of Detroit has one first-run theater remaining, along with three independent theaters.

The Renaissance Center is owned by General Motors. The hotel in the central tower is now managed by the Marriott hotel chain and is called the Detroit Marriott at the Renaissance Center. The 1,298-room hotel is one of the largest operated by Marriott. The rooftop restaurant (which previously had revolved) received a $10 million renovation and was operated by The Epicurean Groups's Coach Insignia (closed in 2017 ). It served Coach wines, a product of the Fisher family whose legacy includes Fisher Body, a name which is part of GM history.

The Renaissance Center's renovation provides for the prospect of continued development and restorations throughout the city. Architectural critics have touted the city's architecture as among North America's finest.

In July 2007 portions of Asian Village, a development of restaurants in Suite 2653 in the GM Center (200 Renaissance Center) with Asian cuisine offered, opened. The center was designed to evoke street food stalls within East and Southeast Asia.

In 2011, the Renaissance Center added colored LED lighting on the top of its towers (Towers 500 and 600 utilize traditional blue floodlights to illuminate their top floors). General Motors added a large illuminated LED corporate logo which also displays GM divisions. The animated logo and illuminated LED color bands around the towers can be used to support special events and may be seen from Comerica Park, home of the Detroit Tigers. The renovation of TCF Center convention and exhibit facility incorporates similar blue neon lighting along riverfront promenade.

In July 2015, the complex was re-branded as "The GMRENCEN." Its logo was modernized and "Reflecting a New Detroit" was introduced as the new tagline. A photo-journalistic advertising campaign launched to "shine a spotlight on the people in Detroit who make remarkable contributions" to the city.

Towers 500 and 600 were acquired by Friedman Real Estate, a firm based in the suburb of Farmington Hills, in December 2023.

Future
On April 15, 2024, GM announced its intention to move its headquarters from the Renaissance Center to the under-construction Hudson's Detroit. No concrete plans have been announced for the complex after GM's departure, though the company's CEO, Mary Barra, has publicly committed to a reuse for the complex, though declined to rule out demolition.

Following the announcement, GM sold its remaining portions of the Millender Center to Bedrock Detroit, owner of the Hudson's development, in June 2024.

Location
The Renaissance Center is a riverfront property located along the Detroit River. Approximately one-mile north of the center are Comerica Park and Ford Field, the respective venues for the Detroit Tigers and Detroit Lions. The US portal of the Detroit-Windsor Tunnel emerges adjacent to the western boundary of the Renaissance Center. The Renaissance Center is also a station on the Detroit People Mover. Additionally a pedestrian skyway, over Jefferson Avenue, connects the complex to the Millender Center. Several blocks to the west of the Renaissance Center, along Jefferson Avenue, there are the Coleman A. Young Municipal Center, Hart Plaza, Huntington Place (formerly Cobo Center, home to events such as the North American International Auto Show and Youmacon) and the Joe Louis Arena (former home of the Detroit Red Wings). The University of Detroit Mercy School of Law is located just across Jefferson Avenue. The Renaissance Center's modernist architecture balances the city's panoramic waterfront skyline, a frequent feature in photography taken from Windsor, Ontario, across the river. From the top of Renaissance Center's previous Coach Insignia restaurant (closed in 2017 ), patrons were able to peer down upon the neogothic spires of the One Detroit Center and the city's Financial District skyscrapers and stadiums. The view from the top extended for 30 mi in all directions.

Architecture
The centerpiece is the 73-story 727-foot (221.5 m) luxury hotel with 1,246 rooms and 52 suites (1298 total guest rooms). Its height is measured from its main Wintergarden entrance on Atwater Street which faces the International Riverfront where the complex measures 14 ft taller. Entirely owned by General Motors, the complex has 5552000 sqft of space. The main Renaissance Center complex rises from a 14 acre site. The complex is designed in the modern architectural style with glass as a main material. Famous for its cylindrical design, the central hotel tower's diameter is 188 ft. A lighted glass walkway radiates the mezzanine level and encircles the base of cylindrical hotel tower for ease of navigation. This ringed glass walkway is about 12 ft wide and has a circumference of approximately 660 ft or about one-eighth of a mile around. The ringed walkway's diameter is approximately 210 ft. It links to several other walkways in the complex. The five-story Wintergarden atrium leads into the central area which has an eight-story atrium lobby with rounded concrete balconies and terraces. The Highlands is located on Floors 71 through 73, which includes a restaurant, scotch bar, and special events space. The hotel has no floors labeled 7, 8, or 13. The hotel features a major conference center with 100000 sqft of meeting space including a Renaissance Ballroom for up to 2,200 guests with 26000 sqft for events, one of the largest in the United States.

John Portman designed the five-building rosette with interior spaces. In 1977, its central tower opened as the tallest hotel in the world. It remains the tallest all hotel skyscraper in the Western Hemisphere. The smaller cylinders on sides of all the towers house the elevators. The four surrounding 39-story office towers (100–400) each reach 522 feet (159 m) and have a total of 2200000 sqft of space. Each 39-story tower has a base five-story podium structure with 165000 sqft for retail space for a total of 660000 sqft. A portion of the central atrium area houses GM World, a showcase for GM vehicles. Two 21-story towers (500–600), designed by Portman and constructed in 1981, reach 339 feet (103 m). GM gained control of Towers 500 and 600 in 2001. Tower 500 has 307300 sqft of office space and an additional 14485 sqft of retail space. Tower 600 has 304200 sqft of office space and an additional 35730 sqft of retail space.

Towers 100 and 200 front Jefferson Avenue. Towers 300 and 400 are on the main Wintergarden/Atwater Street entrance facing the Riverfront. The GM Renaissance Conference Center is located on the second floor of tower 300.

The design is consistent with the themes of Brutalist architecture, especially in the heavy massing of concrete on the lower floors, but the 2001 renovation has softened those features.

Redevelopment
The redevelopment project included the work of many different architects including Skidmore, Owings & Merrill of Chicago, SmithGroup of Detroit, and Ghafari Associates of Dearborn who did the renovation of the office towers. The majority of the construction operations were led by Turner Construction Company. The structural glass and steel for the Wintergarden, the entrance lobby as well as the mezzanine glass walkway were contributed by Mero. The cost of the renovation does not include the cost for reconfiguring the streets around the Renaissance Center or the cost of the park along the International Riverfront.

The $500 million renovation of the Renaissance Center completed in 2003 has helped improve Detroit's economy. Together, GM's renovation of the Renaissance Center and the Detroit Riverwalk exceeded $1 billion; the project constituted a substantial investment in downtown. More than 10,000 people (of whom 6,000 are GM employees) work in the complex. Nearly 2,000 state workers now occupy GM's former office building, the restored Cadillac Place, in the historic New Center district. The Wintergarden added to the Renaissance Center faces the Riverfront and provides panoramic views of the Windsor skyline. The complex connects offices, the hotel, retail specialty shops, restaurants, a jazz club, and a movie theater. The theater has since closed and been converted to offices. A pedestrian-friendly glass entryway has replaced the former concrete berms along Jefferson Avenue. The redevelopment provides the GM World display of vehicles, a restored hotel, a renovated rooftop restaurant, and the addition of GM's corporate logo to crown the top of the building. Construction of the lighted glass walkway facilitates ease of navigation encircling the interior mezzanine. Hines completed redevelopment of Towers 500 and 600 for GM in 2004.

The Riverfront Promenade was dedicated on December 17, 2004, and helped to usher in a return to recreational uses along Detroit's International Riverfront. GM played a key role in the transformation of the east riverfront with a donation of $135 million to the Detroit Riverfront Conservancy for the development of a world class riverfront promenade planned at $559 million, which included $50 million from the Kresge foundation. In 2011, the Detroit Wayne County Port Authority opened its new state of the art cruise ship dock and passenger terminal on Hart Plaza, adjacent to the Renaissance Center. Port authority bonds financed another 1,500 space parking garage adjacent to the Renaissance Center. Further upriver, the Roberts Riverwalk Hotel faces the east riverfront. In addition to the gradual continuation of the riverfront promenade, other planned projects complementing the Renaissance Center continue along the International Riverfont which include development of luxury condominiums, a cruise ship passenger terminal, retail, and entertainment venues.

In popular culture
The opening scenes of Thunder in the Skies, the seventh episode of the BBC science-history documentary Connections by James Burke, were visibly filmed in the then-new Renaissance Center (1978).

The Renaissance Center is featured in the film Action Jackson (1988).

In the film Collision Course starring Jay Leno and Pat Morita, the Renaissance Center is featured when Morita's character and Leno meet for the first time; Morita is considered a suspect and chased through the hotel (1989).

The 2008 crime thriller Killshot features an opening scene in which Mickey Rourke drives a blue Cadillac along Jefferson Avenue in Downtown Detroit where, in his role as hired hitman Armand Degas - nicknamed "Blackbird" - he enters the Marriott Hotel in the Renaissance Center to assassinate a mafia leader called "Papa", played by actor Hal Holbrook.

The film Bird on a Wire (starring Mel Gibson and Goldie Hawn) shot a chase scene inside the Renaissance Center (1990).

The opening scene of Renaissance Man shows Danny DeVito driving down Jefferson Avenue, late for a business meeting at the Renaissance Center, when he receives the phone call that fires him from his job. (1994).

The Renaissance Center is featured in the film Grosse Pointe Blank (1997).

In the Steven Soderbergh film adaptation of Out of Sight, the main characters meet in the revolving restaurant atop the Renaissance Center. The scene was filmed on location (1998).

The Renaissance Center was featured in the Kevin Costner and Joan Allen film The Upside of Anger. Costner's character plays a DJ for WRIF 101 FM, a real Detroit FM rock station, whose studio (in the film) is housed in the Renaissance Center (2004).

For the 2005 Major League Baseball All-Star Game, which was played at Comerica Park in Detroit, the center tower of the Renaissance Center was wrapped with an image of a large baseball smashing into the tower, with "4,612 FT" written below it to indicate the distance from home plate at Comerica Park. For Super Bowl XL, held at Detroit's Ford Field on February 5, 2006, a large National Football League logo was wrapped around the main tower just beneath the GM logo.

The Renaissance Center also hosted the major media for Super Bowl XL. GM offered the Wintergarden a venue for the annual Fash Bash, a fashion event and fundraiser coordinated by the Detroit Institute of Arts.

The History Channel's Life After People: The Series "Roads to Nowhere" episode featured the Renaissance Center.

It was used as a primary filming location for the film Real Steel, starring Hugh Jackman (2011).

In a book by Adrian Humphreys titled The Weasel: A Double Life in the Mob, the former driver of Jimmy Hoffa and a mob associate Marvin "The Weasel" Elkind stated that Hoffa is buried in the foundations of the Renaissance Center (2011).

The series finale of Motor City Masters was filmed in the GM World exhibit in the lower level of the Renaissance Center in 2014.

The Renaissance Center was prominently featured in a scene from the movie Need for Speed (2014).

The alternate cover of the Eminem album Recovery features the Renaissance Center in the background. His music video for "Lose Yourself" was filmed in Detroit, thus contains numerous shots of the city, including the building. Eminem's greatest hits album Curtain Call 2 (2022) album cover also features the Renaissance Center.

Notable events
The Renaissance Center has been used as the media center for Super Bowl XL with the Wintergarden serving as the backdrop for ESPN's Sunday NFL Countdown episode on the day of the Super Bowl.

The Rockin On the Riverfront Concert Series was held at a temporary concert venue across the road from the Renaissance Center on the Detroit riverwalk from 2011 to 2019. The concert series featured acts like Pat Benatar, Rick Derringer, The Guess Who, Blue Öyster Cult, Randy Bachman, Foreigner, Dave Mason, Starship, REO Speedwagon, Ace Frehley, Eddie Money, Loverboy, 38 Special, Steppenwolf, Vince Neil, Jon Anderson, and many more.

The Renaissance Center has also served as the media center for the Detroit Grand Prix since 2023.

The anime convention Youmacon had annually been hosted at the Renaissance Center from 2010 through 2022 where the space had been used to host panels, tabletop gaming, concerts, and much more. On October 30, 2015, the rock band Crush 40 performed at the Renaissance Center as part of the Youmacon anime convention.