|Alternative names||M5 Commerce Centre|
|Roof||550 ft (170 m)|
|Floor area||750,000 sq ft (70,000 m2)|
|Design and construction|
|Structural engineer||DCI Engineers|
|Main contractor||Sellen Construction|
Madison Centre, formerly known as M5 Commerce Centre, is a 550-foot (170 m) tall skyscraper planned for the Downtown district in Seattle, Washington. It is scheduled to be completed in 2015 and have 36 floors. Upon its completion, it would be one of the tallest buildings in Seattle.
Schnitzer West bought the existing property at the site and hoped to begin construction of a skyscraper as early as 2008. In the meantime, however, the late-2000s recession struck the economy and consequently the fate of many commercial real estate projects came under doubt, including 505 Madison. Further development of the project hinged on securing a sufficient number of preleases by 2009, which did not occur.
- Eric Pryne (April 25, 2012). "Schnitzer West revives plan for 36-story office tower downtown". The Seattle Times.
- James, Andrea (March 14, 2007). "More office space at College Club site". Seattle Post-Intelligencer.
- Shevory, Kristina (October 21, 2008). "Even in Resilient Seattle, Office Vacancy Rate Is Rising". New York Times.
- Porter, Lynn (November 10, 2008). "Seattle commercial real estate players: 'We're not immune'". Seattle Daily Journal of Commerce.
- Holden, Dominic (April 7, 2009). "Re: Boom Forever". SLOG.