| 1 | A | B | C | D | E | F | G |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 2 | Renaissance Center - Technical details and tenants |  |  |  |  |  |  |
| 3 | Building | Image | Year | Stories | Height feet / m | Area sq feet / m² | Principal tenant(s) |
| 4 | Detroit Marriott at the Renaissance Center. (Central hotel tower) | - | 1977 2004 | 73 | 727 / 221.5 | 1,812,000 / 168,300 estimate | Marriott hotel. Coach Insignia restaurant located at the top closed in 2017. |
| 5 | Southwest – Tower 100 | - | 1977 2004 | 39 | 522 / 159 | 550,000 / 51,100 | General Motors HP Enterprise Services United States Post Office |
| 6 | Northwest – Tower 200 | - | 1977 2004 | 39 | 522 / 159 | 550,000 / 51,100 | Ally Financial Headquarters Deloitte |
| 7 | Northeast – Tower 300 | - | 1977 2004 | 39 | 522 / 159 | 550,000 / 51,100 | General Motors The Renaissance Conference Center on level 2 contains 20,000 sq ft (1,900 m2). of meeting space. |
| 8 | Southeast – Tower 400 | - | 1977 2004 | 39 | 522 / 159 | 550,000 / 51,100 | General Motors OnStar CBRE Consulate-General of Japan, Detroit. |
| 9 | Podium structures beneath Towers 100–400 | - | 1977 2004 | 5 | 103 / 31.39 | 660,000 / 61,300 | GM Showroom Food Court Exhibit space & retail |
| 10 | Tower 500 | - | 1981 2004 | 21 | 339 / 103 | 320,000 / 29,700 | Blue Cross Blue Shield of Michigan. Includes 14,845 sq ft (1,380 m2) of retail space. |
| 11 | Tower 600 | - | 1981 2004 | 21 | 339 / 103 | 340,000 / 31,600 | Blue Cross Blue Shield of Michigan and Consulate-General of Canada. Includes 35,730 sq ft (3,320 m2) of retail space. |
| 12 | Wintergarden & Restaurants | - | 2001 | 5 | 103 / 31.39 | 150,000 / 14,000 | Andiamo Presto |
| 13 | Wintergarden atrium | - | 2001 | 5 | 103 / 31.39 | 40,000 / 3,700 | Main entry and exhibit space. |
| 14 | Renaissance Center total | - | 1977 2004 | NA | 727 / 221.5 | 5,552,000 / 515,800 | Owner of complex: General Motors. Property management firm: CBRE. |

Question: Which Renaissance Center towers were first constructed in the 1980's, and what were their final heights?
Answer: Two 21-story towers (Tower 500 and Tower 600), constructed in 1981, reached 339 feet (103 m).