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Madison Centre
Madison Centre.jpg
Madison Centre in October 2017
Former names M5 Commerce Centre, 505 Madison
General information
Type Office
Location 920 5th Avenue, Seattle, Washington 98104
Coordinates 47°36′23″N 122°19′53″W / 47.606468°N 122.331282°W / 47.606468; -122.331282
Construction started 2014
Opened October 2017
Cost $157 million
Roof 530 ft (160 m)
Top floor 37
Technical details
Floor count 37
Floor area 746,000 sq ft (69,300 m2)
Lifts/elevators 22
Design and construction
Architect NBBJ
Developer Schnitzer West
Structural engineer DCI Engineers
Main contractor Sellen Construction
Other information
Parking 480 spaces

Madison Centre (formerly known as M5 Commerce Centre and 505 Madison) is a 530-foot-tall (160 m) skyscraper in Downtown Seattle, Washington. It was completed in October 2017 and has 37 floors of office space totaling 746,000 square feet (69,300 m2) of gross leasable area. It is the eleventh-tallest building in Seattle. It is located at the intersection of 5th Avenue and Madison Street in Downtown Seattle, adjacent to the Seattle Central Library and William Kenzo Nakamura United States Courthouse.


Schnitzer West bought the existing property from the College Club of Seattle in 2007 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.

In 2012, the project was revived and the developer began seeking permits to start construction. Demolition of the pre-existing buildings on the site began in early September 2014.

In February 2016, Cornerstone Real Estate Advisers (now Barings) announced that it would enter a joint venture with Schnitzer West to develop Madison Centre. Construction on the tower topped out in October 2016, and the tower opened for occupancy in October 2017.

The retail space facing Marion Street was leased to Amazon Go, the second store for the cashier-less convenience store. It opened on August 27, 2018. Hulu signed a major league for 67,400 square feet (6,260 m2) within the building in April 2019.

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